The blue colour of clear sky is due to--------? A. Reflection of light B. Refraction of light C. Diffraction of light D. Dispersion of light (Answer)

The blue colour of clear sky is due to--------?

A. Reflection of light

B. Refraction of light

C. Diffraction of light

D. Dispersion of light (Answer)
by

1 Answer

Answer :

D. Dispersion of light (Answer)
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Related questions

The colour of sky appears blue due to – (1) reflection (2) refraction (3) scattering of shorter wave lengths (4) dispersion

Description : The colour of sky appears blue due to – (1) reflection (2) refraction (3) scattering of shorter wave lengths (4) dispersion

Last Answer : (3) scattering of shorter wave lengths Explanation: The sunlit sky is blue because air scatters short-wavelength light more than longer wavelengths. Since blue light is at the short wavelength end of the ... that the human eye perceives blue when looking toward parts of the sky other than the sun.

The colour of sky appears blue due to (1) reflection (2) refraction (3) scattering of shorter wave lengths (4) dispersion

Description : The colour of sky appears blue due to (1) reflection (2) refraction (3) scattering of shorter wave lengths (4) dispersion

Last Answer : scattering of shorter wave lengths

Rainbow is formed due to – (1) refraction and dispersion (2) scattering and refraction (3) diffraction and refraction (4) refraction and reflection

Description : Rainbow is formed due to – (1) refraction and dispersion (2) scattering and refraction (3) diffraction and refraction (4) refraction and reflection

Last Answer : (4) refraction and reflection Explanation: A rainbow is an optical phenomenon that is caused by both reflection and refraction of light in water droplets resulting in a spectrum of light appearing in ... water, then reflected inside on the back of the droplet and refracted again when leaving it.

Rainbow is formed due to (1) refraction and dispersion (2) scattering and refraction (3) diffraction and refraction (4) refraction and reflection

Description : Rainbow is formed due to (1) refraction and dispersion (2) scattering and refraction (3) diffraction and refraction (4) refraction and reflection

Last Answer : refraction and reflection

"Tice splitting of different colours of light in a prism is : (1) Reflection of light (2) Dispersion light (3) Diffraction light (4) Refraction of light

Description : "Tice splitting of different colours of light in a prism is : (1) Reflection of light (2) Dispersion light (3) Diffraction light (4) Refraction of light

Last Answer : (2) Dispersion light Explanation: The refractive index of many materials (such as glass) varies with the wavelength or colour of the light used, a phenomenon known as dispersion. This causes ... a wave depends on its frequency, or alternatively when the group velocity depends on the frequency.

Light bends around sharp corners as a result of w) refraction x) reflection y) diffraction z) dispersion

Description : Light bends around sharp corners as a result of w) refraction x) reflection y) diffraction z) dispersion

Last Answer : ANSWER: Y -- DIFFRACTION

The blue colour of sky is due to – (1) reflection of sunlight (2) refraction of sunlight (3) scattering of shorter wave-lengths of sunlight in the atmosphere (4) scattering of longer wave-lengths of sunlight in the atmosphere

Description : The blue colour of sky is due to – (1) reflection of sunlight (2) refraction of sunlight (3) scattering of shorter wave-lengths of sunlight in the atmosphere (4) scattering of longer wave-lengths of sunlight in the atmosphere

Last Answer : (3) scattering of shorter wave-lengths of sunlight in the atmosphere Explanation: The blue colour of the sky is caused by the scattering of sunlight off the molecules of the atmosphere. This scattering, ... to the direction of the sun's light is predominantly in the blue end of the spectrum.

The blue colour of sky is due to – (1) reflection of sunlight (2) refraction of sunlight (3) scattering of shorter wave-lengths of sunlight in the atmosphere (4) scattering of longer wave-lengths of sunlight in the atmosphere

Description : The blue colour of sky is due to – (1) reflection of sunlight (2) refraction of sunlight (3) scattering of shorter wave-lengths of sunlight in the atmosphere (4) scattering of longer wave-lengths of sunlight in the atmosphere

Last Answer : (3) scattering of shorter wave-lengths of sunlight in the atmosphere Explanation: The blue colour of the sky is caused by the scattering of sunlight off the molecules of the atmosphere. This scattering, ... to the direction of the sun's light is predominantly in the blue end of the spectrum.

The blue colour of sky is due to (1) reflection of sunlight (2) refraction of sunlight (3) scattering of shorter wavelengths of sunlight in the atmosphere (4) scattering of longer wavelengths of sunlight in the atmosphere

Description : The blue colour of sky is due to (1) reflection of sunlight (2) refraction of sunlight (3) scattering of shorter wavelengths of sunlight in the atmosphere (4) scattering of longer wavelengths of sunlight in the atmosphere

Last Answer : scattering of shorter wavelengths of sunlight in the atmosphere

The phenomenon of light associated with the appearance of blue colour of the sky is – (1) Interference (2) Reflection (3) Refraction (4) Scattering

Description : The phenomenon of light associated with the appearance of blue colour of the sky is – (1) Interference (2) Reflection (3) Refraction (4) Scattering

Last Answer : (4) Scattering Explanation: During daylight, the sky appears to be blue because air scatters blue sunlight more than it scatters red. At night, the sky appears to be a mostly dark surface ... day sky is a result of scattering, which is dominated by a smallparticle limit called Rayleigh scattering.

The phenomenon of light associated with the appear-ance of blue colour of the sky is (1) Interference (2) Reflection (3) Refraction (4) Scattering

Description : The phenomenon of light associated with the appear-ance of blue colour of the sky is (1) Interference (2) Reflection (3) Refraction (4) Scattering

Last Answer : Scattering

A star appears twinkling in the sky because of – (1) scattering of light by atmosphere (2) reflection of light by atmosphere (3) refraction of light by atmosphere (4) diffraction of light by atmosphere

Description : A star appears twinkling in the sky because of – (1) scattering of light by atmosphere (2) reflection of light by atmosphere (3) refraction of light by atmosphere (4) diffraction of light by atmosphere

Last Answer : (3) refraction of light by atmosphere Explanation: A star appears twinkling in the sky because of refraction of light, by atmosphere. Light bends when it passes obliquely from one medium to another. This is called refraction of light.

A star appears twinkling in the sky because of (1) scattering of light by atmosphere (2) reflection of light by atmosphere (3) refraction of light by atmosphere (4) diffraction of light by atmosphere

Description : A star appears twinkling in the sky because of (1) scattering of light by atmosphere (2) reflection of light by atmosphere (3) refraction of light by atmosphere (4) diffraction of light by atmosphere

Last Answer : refraction of light by atmosphere

The information of brilliant colors in a thin soap film is a consequence of the phenomena of - (1) Polarization and interference (2) Diffraction and dispersion (3) Multiple refraction and dispersion (4) Multiple reflection and interference

Description : The information of brilliant colors in a thin soap film is a consequence of the phenomena of - (1) Polarization and interference (2) Diffraction and dispersion (3) Multiple refraction and dispersion (4) Multiple reflection and interference

Last Answer : (4) Multiple reflection and interference Explanation: Light waves reflected by the upper and lower boundaries of a thin film interfere with one another, either enhancing or reducing the reflected light.

The information of brilliant colors in a thin soap film is a consequence of the phenomena of - (1) Polarization and interference (2) Diffraction and dispersion (3) Multiple refraction and dispersion (4) Multiple reflection and interference

Description : The information of brilliant colors in a thin soap film is a consequence of the phenomena of - (1) Polarization and interference (2) Diffraction and dispersion (3) Multiple refraction and dispersion (4) Multiple reflection and interference

Last Answer : (4) Multiple reflection and interference Explanation: Light waves reflected by the upper and lower boundaries of a thin film interfere with one another, either enhancing or reducing the reflected light.

Blue of the sky is due to the (a) Refraction of white light by the atmosphere (b) Reflection of white light by the earth (c) Scattering of white light by molecules of air (d) Interference of white light

Description : Blue of the sky is due to the (a) Refraction of white light by the atmosphere (b) Reflection of white light by the earth (c) Scattering of white light by molecules of air (d) Interference of white light

Last Answer : Ans:(c)

The blue colour of water in the sea is due to – (1) absorption of other colours except blue by water molecules (2) scattering of blue light by water molecules (3) reflection of blue light by impurities in sea water (4) reflection of blue sky by sea water

Description : The blue colour of water in the sea is due to – (1) absorption of other colours except blue by water molecules (2) scattering of blue light by water molecules (3) reflection of blue light by impurities in sea water (4) reflection of blue sky by sea water

Last Answer : (1) absorption of other colours except blue by water molecules Explanation: Almost all sunlight that enters the ocean is absorbed, except very close to the coast. The red, yellow, and green ... to the absorption and scattering of light. The blue wavelengths of light are scattered, similar to the

The blue colour of water in the sea is due to (1) absorption of other colours except blue by water molecules (2) scattering of blue light by water molecules (3) reflection of blue light by impurities in sea water (4) reflection of blue sky by sea water

Description : The blue colour of water in the sea is due to (1) absorption of other colours except blue by water molecules (2) scattering of blue light by water molecules (3) reflection of blue light by impurities in sea water (4) reflection of blue sky by sea water

Last Answer : absorption of other colours except blue by water molecules

The redness in atmosphere at Sunrise and Sunset is due to – (1) Refraction of light (2) Reflection of light (3) Dispersion of light (4) Scattering of light

Description : The redness in atmosphere at Sunrise and Sunset is due to – (1) Refraction of light (2) Reflection of light (3) Dispersion of light (4) Scattering of light

Last Answer : (4) Scattering of light Explanation: The red colour in the sky at sunset (and sunrise) is due to an effect called Rayleigh scattering. At sunrise or sunset, since the Sun is low on the horizon, ... through more of the atmosphere - and therefore bounce off more molecules -than at other times of day.

The splitting of white light into its components is due to: (1) Reflection (2) Refraction (3) Transmission (4) Dispersion

Description : The splitting of white light into its components is due to: (1) Reflection (2) Refraction (3) Transmission (4) Dispersion

Last Answer : (4) Dispersion Explanation: Dispersion is used to separate a beam of white light into its constituent spectrum of colours. This phenomenon leads to rainbow.

The white light after falling on prism gets split into seven colours due to _______ of light. a) reflection b)refraction c)dispersion d)bend

Description : The white light after falling on prism gets split into seven colours due to _______ of light. a) reflection b)refraction c)dispersion d)bend

Last Answer : c)dispersion

The redness in atmosphere at Sunrise and Sunset is due to : (1) Refraction of light (2) Reflection of light (3) Dispersion of light (4) Scattering of light

Description : The redness in atmosphere at Sunrise and Sunset is due to : (1) Refraction of light (2) Reflection of light (3) Dispersion of light (4) Scattering of light

Last Answer : Scattering of light

The splitting of white light into its components is due to: (1) reflection (2) refraction (3) transmission (4) dispersion

Description : The splitting of white light into its components is due to: (1) reflection (2) refraction (3) transmission (4) dispersion

Last Answer : dispersion

Golden view of sea shell is due to - (1) Diffraction (2) Dispersion (3) Polarization (4) Reflection

Description : Golden view of sea shell is due to - (1) Diffraction (2) Dispersion (3) Polarization (4) Reflection

Last Answer : (3) Polarization Explanation: When a ray of light falls on sea shell, its small amount gets refracted (slightly polarized) and rest almost gets reflected back (fully polarized). So it gets a golden view because of polarization.

Golden view of sea shell is due to (1) Diffraction (2) Dispersion (3) Polarization(4) Reflection

Description : Golden view of sea shell is due to (1) Diffraction (2) Dispersion (3) Polarization(4) Reflection 

Last Answer : Polarization

Why does water tank appear shallower when viewed from the top? (1) Due to reflection (2) Due to refraction (3) Due to diffraction (4) Due to total internal reflection

Description : Why does water tank appear shallower when viewed from the top? (1) Due to reflection (2) Due to refraction (3) Due to diffraction (4) Due to total internal reflection

Last Answer : (2) Due to refraction Explanation: Water in a swimming pool or water tank appears shallower than its depth because of the refraction of light. The light travels straight as long as it is in the water, but if it emerges obliquely from the water into the air it is bent downward toward the surface.

A pond of water appears less deep due to – (1) Reflection (2) Diffraction (3) Refraction (4) Polarization

Description : A pond of water appears less deep due to – (1) Reflection (2) Diffraction (3) Refraction (4) Polarization

Last Answer : (3) Refraction Explanation: The apparent depth will look less that its real depth due to the refraction of light. First of all, imagine an object at the bottom of the pond, emitting three beams of light ... eye, and as such perfectly vertical, will not bend one way or another as it leaves the water.

Eclipses occur due to which optical phenomena? (1) Reflection (2) Refraction (3) Rectilinear propagation (4) Diffraction

Description : Eclipses occur due to which optical phenomena? (1) Reflection (2) Refraction (3) Rectilinear propagation (4) Diffraction

Last Answer : (3) Rectilinear propagation Explanation: An eclipse is an astronomical event that occurs when an astronomical object is temporarily obscured, either by passing into the shadow of another body or by having ... a wave property which states that waves propagate (move or spread out) in straight lines.

Eclipses occur due to which optical phenomena? (1) Reflection (2) Refraction (3) Rectilinear propagation (4) Diffraction

Description : Eclipses occur due to which optical phenomena? (1) Reflection (2) Refraction (3) Rectilinear propagation (4) Diffraction

Last Answer : Rectilinear propagation

A pond of water appears less deep due to (1) reflection (2) diffraction (3) refraction (4) polarisation

Description : A pond of water appears less deep due to (1) reflection (2) diffraction (3) refraction (4) polarisation

Last Answer : refraction

A light ray travelling from denser to rarer medium at an angle of incidence more than critical angle of concerned media pair suffers. (1) reflection (2) refraction (3) diffraction (4) total internal reflection

Description : A light ray travelling from denser to rarer medium at an angle of incidence more than critical angle of concerned media pair suffers. (1) reflection (2) refraction (3) diffraction (4) total internal reflection

Last Answer : (4) total internal reflection Explanation: If the angle of incidence of light ray in the denser medium is greater than the critical angle of the concerned media pair, the light is not at all reflected in to the rarer medium but is totally reflected. This is known as 'total internal reflection'.

A light ray travelling from denser to rarer medium at an angle of incidence more than critical angle of concerned media pair suffers. (1) reflection (2) refraction (3) diffraction (4) total internal reflection

Description : A light ray travelling from denser to rarer medium at an angle of incidence more than critical angle of concerned media pair suffers. (1) reflection (2) refraction (3) diffraction (4) total internal reflection

Last Answer :  total internal reflection

The splitting of different colours of light in a prism is : (1) Reflection of light (2) Disperson of light (3) Diffraction of light (4) Refraction of light

Description : The splitting of different colours of light in a prism is : (1) Reflection of light (2) Disperson of light (3) Diffraction of light (4) Refraction of lights

Last Answer : Disperson of light

A man is sitting by the side of a large lake. He hears the utterances of bathers with their mouth close to water surface more clearly than if they were at same distance away on land. This effect is due to sound waves undergoing (a) Reflection (b) Refraction (c) Dispersion (d) Total internal reflection

Description : A man is sitting by the side of a large lake. He hears the utterances of bathers with their mouth close to water surface more clearly than if they were at same distance away on land. This ... due to sound waves undergoing (a) Reflection (b) Refraction (c) Dispersion (d) Total internal reflection

Last Answer : Ans:(c)

Which of the following phenomena of light are involved in the formation of a rainbow? (a) Reflection, refraction and dispersion (b) Refraction, dispersion and total internal reflection (c) Refraction, dispersion and internal reflection (d) Dispersion, scattering and total internal reflection

Description : Which of the following phenomena of light are involved in the formation of a rainbow? (a) Reflection, refraction and dispersion (b) Refraction, dispersion and total internal reflection (c) Refraction, dispersion and internal reflection (d) Dispersion, scattering and total internal reflection

Last Answer : (b) Refraction, dispersion and total internal reflection

‘Mirage' is an example of - (1) Refraction of light only (2) Total internal reflection of light only (3) Refraction and total internal reflection of light (4) Dispersion of light only

Description : ‘Mirage' is an example of - (1) Refraction of light only (2) Total internal reflection of light only (3) Refraction and total internal reflection of light (4) Dispersion of light only

Last Answer : (3) refraction and total internal reflection of light

'Mirage' is an example of – (1) refraction of light only (2) total internal, reflection of light only (3) refraction and total internal reflection of light (4) dispersion of light only

Description : 'Mirage' is an example of – (1) refraction of light only (2) total internal, reflection of light only (3) refraction and total internal reflection of light (4) dispersion of light only

Last Answer : (3) refraction and total internal reflection of light Explanation: A mirage is a naturally occurring optical phenomenon in which light rays are bent to produce a displaced image of distant objects ... significantly warmer air, the light rays bend away from the direction of the temperature gradient.

‘Mirage' is an example of - (1) Refraction of light only (2) Total internal reflection of light only (3) Refraction and total internal reflection of light (4) Dispersion of light only

Description : ‘Mirage' is an example of - (1) Refraction of light only (2) Total internal reflection of light only (3) Refraction and total internal reflection of light (4) Dispersion of light only

Last Answer : (3) refraction and total internal reflection of light

'Mirage' is an example of – (1) refraction of light only (2) total internal, reflection of light only (3) refraction and total internal reflection of light (4) dispersion of light only

Description : 'Mirage' is an example of – (1) refraction of light only (2) total internal, reflection of light only (3) refraction and total internal reflection of light (4) dispersion of light only

Last Answer : (3) refraction and total internal reflection of light Explanation: A mirage is a naturally occurring optical phenomenon in which light rays are bent to produce a displaced image of distant objects ... significantly warmer air, the light rays bend away from the direction of the temperature gradient.

The phenomenon of change in direction of light when it passes from one medium to another is called - (1) Propagation (2) Reflection (3) Refraction (4) Dispersion

Description : The phenomenon of change in direction of light when it passes from one medium to another is called - (1) Propagation (2) Reflection (3) Refraction (4) Dispersion

Last Answer : (3) Refraction Explanation: Refraction is the change in direction of wave propagation due to a change in its transmission medium. Due to the change of medium, the phase velocity of the wave is changed but its frequency remains constant.

What is the reason for twinkling of stars? (1) Dispersion of light (2) Total internal reflection (3) Atmospheric reflection (4) Atmospheric refraction

Description : What is the reason for twinkling of stars? (1) Dispersion of light (2) Total internal reflection (3) Atmospheric reflection (4) Atmospheric refraction

Last Answer : (4) Atmospheric refraction Explanation: Seismometers are instrument that measures motion of the ground, including those of seismic waves generated by earthquakes, volcanic eruptions and other seismic ... of these different sources. Seismograph is another Greek term meaning to draw siesmo waves.

The phenomenon of change in direction of light when it passes from one medium to another is called (1) Propagation (2) Reflection (3) Refraction (4) Dispersion

Description : The phenomenon of change in direction of light when it passes from one medium to another is called (1) Propagation (2) Reflection (3) Refraction (4) Dispersion

Last Answer : Refraction

‘Mirage’ is an example of (1) refraction of light only (2) total internal, reflection of light only (3) refraction and total internal reflection of light (4) dispersion of light only

Description : ‘Mirage’ is an example of (1) refraction of light only (2) total internal, reflection of light only (3) refraction and total internal reflection of light (4) dispersion of light only

Last Answer : refraction and total internal reflection of light

What is the reason for twinkling of stars ? (1) Dispersion of light (2) Total internal reflection (3) Atmospheric reflection (4) Atmospheric refraction

Description : What is the reason for twinkling of stars ? (1) Dispersion of light (2) Total internal reflection (3) Atmospheric reflection (4) Atmospheric refraction

Last Answer : Atmospheric refraction

Optical fibres are based on the phenomenon of – (1) Interference (2) Dispersion (3) Diffraction (4) Total Internal Reflection

Description : Optical fibres are based on the phenomenon of – (1) Interference (2) Dispersion (3) Diffraction (4) Total Internal Reflection

Last Answer : (4) Total Internal Reflection Explanation: An optical fiber (or optical fibre) is a flexible, transparent fiber made of glass (Silica) or plastic, slightly thicker than a human hair. It functions as a ... is kept in the core by total internal reflection. This causes the fiber to act as a waveguide.

Reflections in many directions ∙ a. Diffuse reflection ∙ b. Diffraction ∙ c. Scattering ∙ d. Dispersion

Description : Reflections in many directions ∙ a. Diffuse reflection ∙ b. Diffraction ∙ c. Scattering ∙ d. Dispersion

Last Answer : a. Diffuse reflection

Optical fibres are based on the phenomenon of (1) Interference (2) Dispersion (3) Diffraction (4) Total Internal Reflection

Description : Optical fibres are based on the phenomenon of (1) Interference (2) Dispersion (3) Diffraction (4) Total Internal Reflection

Last Answer : Total Internal Reflection

A periscope works on the principle of (1) refraction (2) total internal reflection (3) diffraction (4) reflection

Description : A periscope works on the principle of (1) refraction (2) total internal reflection (3) diffraction (4) reflection

Last Answer : (2) total internal reflection Explanation: Total internal reflection (TIR) is the phenomenon that involves the reflection of the entire incident light off the boundary. Glass prisms can be shaped to ... at an angle greater than the critical angle of 42 and hence they are internally reflected.

Longitudinal waves do not exhibit a. Polarization b. Refraction c. Reflection d. Diffraction

Description : Longitudinal waves do not exhibit a. Polarization b. Refraction c. Reflection d. Diffraction

Last Answer : a. Polarization

What phenomenon causes the radio-path horizon distance to exceed the geometric horizon? A. Diffraction B. Ducting C. Reflection D. Refraction

Description : What phenomenon causes the radio-path horizon distance to exceed the geometric horizon? A. Diffraction B. Ducting C. Reflection D. Refraction

Last Answer : D. Refraction