Lambert's law is related to – (1) Reflection (2) Refraction (3) Interference (4) Illumination

Lambert's law is related to – (1) Reflection (2) Refraction (3) Interference (4) Illumination
by

1 Answer

Answer :

(4) Illumination Explanation: In optics, Lambert's cosine law says that the radiant intensity or luminous intensity observed from an ideal diffusely reflecting surface or ideal diffuse radiator is directly proportional to the cosine of the angle between the observer's line of sight and the surface normal. The law is also known as the cosine emission law or Lambert's emission law.
by
selected

Related questions

Lamberts law is related to – (1) Reflection (2) Refraction (3) Interference (4) Illumination

Description : Lamberts law is related to – (1) Reflection (2) Refraction (3) Interference (4) Illumination

Last Answer : (4) Illumination Explanation: Lambert's Law says that the intensity of emitted light from a surface is directly proportional to the cosine of the angle between the line of view and the normal ... , and exhibits Lambertian reflectance. Such a surface has the same radiance when viewed from any angle.

Lamberts law is related to (1) Reflection (2) Refraction (3) Interference (4) Illumination

Description : Lamberts law is related to (1) Reflection (2) Refraction (3) Interference (4) Illumination

Last Answer : Illumination

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.

Which phenomenon is responsible for the echo of sound wave? (1) Reflection (2) Refraction (3) Interference (4) Polarization

Description : Which phenomenon is responsible for the echo of sound wave? (1) Reflection (2) Refraction (3) Interference (4) Polarization

Last Answer : (1) Reflection Explanation: Reflection of sound waves off of surfaces lead to one of two phenomena - an echo or a reverberation. The echo is produced due to hitting of the sound waves with the ... reflected sound wave reaches the ear more than 0.1 seconds after the original sound wave was heard.

Light waves projected on oil surface show seven colours due to the phenomenon of (1) polarisation (2) refraction (3) reflection (4) interference

Description : Light waves projected on oil surface show seven colours due to the phenomenon of (1) polarisation (2) refraction (3) reflection (4) interference

Last Answer : (4) interference Explanation: In physics, interference is a phenomenon in which two waves superpose to form a resultant wave of greater, lower, or the same amplitude.

Optical fibre works on the principle of (1) refraction (2) scattering (3) interference (4) total internal reflection

Description : Optical fibre works on the principle of (1) refraction (2) scattering (3) interference (4) total internal reflection

Last Answer : (4) total internal reflection Explanation: Since Torque = force x distance, to open a door easily, the handle should be fixed at the greatest distance from the hinges. If we pull with same force on a handle ... from the hinges, we will provide twice the torque, so it will be twice as easy to open.

Optical fibre works on the - (1) principle of refraction (2) total internal reflection (3) scattering (4) interference

Description : Optical fibre works on the - (1) principle of refraction (2) total internal reflection (3) scattering (4) interference

Last Answer : b) total internal reflection Explanation: Optical fiber is a cylindrical dielectric waveguide (non-conducting waveguide) that transmits light along its axis, by the process of total internal reflection.

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 reason for a swimming pool to appear less deep than the actual depth is – (1) Refraction (2) Light scattering (3) Reflection (4) Interference

Description : The reason for a swimming pool to appear less deep than the actual depth is – (1) Refraction (2) Light scattering (3) Reflection (4) Interference

Last Answer : (1) Refraction Explanation: The apparent depth will look less that its real depth due to the refraction of light. Refraction is the bending of a wave when it enters a medium where it's speed is ... depends on the indices of refraction of the two media and is described quantitatively by Snell's Law.

The sparkling of a diamond is due to – (1) total internal reflection of light (2) interference of light (3) polarisation of light (4) refraction of light

Description : The sparkling of a diamond is due to – (1) total internal reflection of light (2) interference of light (3) polarisation of light (4) refraction of light

Last Answer : (1) total internal reflection of light Explanation: Diamonds sparkle because of the total internal reflection of light. Diamonds have a very high refractive index, meaning they slow light down much more ... so that light seems to get 'trapped' within the diamond giving it it's sparkly appearance.

Which phenomenon is responsible for the echo of sound wave? (1) Reflection (2) Refraction (3) Interference (4) Polarisation

Description : Which phenomenon is responsible for the echo of sound wave? (1) Reflection (2) Refraction (3) Interference (4) Polarisation

Last Answer : Reflection

Optical fibre works on the principle of (1) refraction (2) scattering (3) interference (4) total internal reflection

Description : Optical fibre works on the principle of (1) refraction (2) scattering (3) interference (4) total internal reflection

Last Answer : total internal reflection 

The sparkling of a diamond is due to (1) total internal reflection of light (2) interference of light (3) polarisation of light (4) refraction of light

Description : The sparkling of a diamond is due to (1) total internal reflection of light (2) interference of light (3) polarisation of light (4) refraction of light

Last Answer : total internal reflection of light

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

The reason for a swimming pool to appear less deep than the actual depth is (1) refraction (2) light scattering (3) reflection (4) interference

Description : The reason for a swimming pool to appear less deep than the actual depth is (1) refraction (2) light scattering (3) reflection (4) interference

Last Answer : refraction

The reflectance from a surface is called specular reflection if it follows: (A)snell's law (B) Lambert's cosine law (C) Planktan's law (D) All of thes

Description : The reflectance from a surface is called specular reflection if it follows: (A)snell's law (B) Lambert's cosine law (C) Planktan's law (D) All of thes

Last Answer : Answer: Option A

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 Reason for a Swimming Pool to appear Less Deep than the actual depth is-----? A. Refraction (Answer) B. Light scattering C. Reflection D. Interference

Description : The Reason for a Swimming Pool to appear Less Deep than the actual depth is-----? A. Refraction (Answer) B. Light scattering C. Reflection D. Interference

Last Answer : A. Refraction (Answer)

Echo is a ------ of sound? A. Reflection (Answer) B. Refraction C. Interference D. None

Description : Echo is a ------ of sound? A. Reflection (Answer) B. Refraction C. Interference D. None

Last Answer : A. Reflection (Answer)

Twinkling of stars is caused by ? A. Reflection of light B. Polarization of light C. refraction of light (Answer) D. Interference of light E. None of these

Description : Twinkling of stars is caused by ? A. Reflection of light B. Polarization of light C. refraction of light (Answer) D. Interference of light E. None of these

Last Answer : C. refraction of light (Answer)

Which of the following phenomena provides a convincing proof for wave nature of radiation a) Reflection b) Refraction c) Polarization d) Interference and diffraction

Description : Which of the following phenomena provides a convincing proof for wave nature of radiation a) Reflection b) Refraction c) Polarization d) Interference and diffraction

Last Answer : d) Interference and diffraction

Diffraction is special type of __________. A. Reflection B. Refraction C. Interference D. Polarization

Description : Diffraction is special type of __________. A. Reflection B. Refraction C. Interference D. Polarization

Last Answer : B. Refraction

Optical fiber works on the A. principle of refraction B. total internal reflection C. scattering D. interference

Description : Optical fiber works on the A. principle of refraction B. total internal reflection C. scattering D. interference

Last Answer : B. total internal reflection

hat is the name of the process whereby waves travel around corners and obstacles in their paths? A. Reflection B. Refraction C Interference D. Diffraction

Description : hat is the name of the process whereby waves travel around corners and obstacles in their paths? A. Reflection B. Refraction C Interference D. Diffraction

Last Answer : D. Diffraction

Lambert’s Law is related to –

Description : Lambert’s Law is related to –

Last Answer : Illumination

In interference experiment, by keeping all other parameters constant, if you see the thin film interference from different angles, you will observe (a)Uniform illumination of screen (b) Uniform darkness on the screen (c) Equally spaced dark and white bands (d) Few colored bands and then general illumination

Description : In interference experiment, by keeping all other parameters constant, if you see the thin film interference from different angles, you will observe (a)Uniform illumination of screen (b) Uniform ... c) Equally spaced dark and white bands (d) Few colored bands and then general illumination

Last Answer : (d) Few colored bands and then general illumination

In interference experiment, monochromatic light is replaced by white light, we will see (a) Uniform illumination of screen (b) Uniform darkness on the screen (c) Equally spaced dark and white bands (d) Few colored bands and then general illumination

Description : In interference experiment, monochromatic light is replaced by white light, we will see (a) Uniform illumination of screen (b) Uniform darkness on the screen (c) Equally spaced dark and white bands (d) Few colored bands and then general illumination

Last Answer : (d) Few colored bands and then general illumination

Which of the following phenomenon helps to conclude that light is a transverse wave? (1) interference (2) diffraction (3) polarization (4) refraction

Description : Which of the following phenomenon helps to conclude that light is a transverse wave? (1) interference (2) diffraction (3) polarization (4) refraction

Last Answer : (3) polarization Explanation: The phenomena of interference and diffraction of light were successful beyond doubt to prove that light is a form of wave. But they failed to decide whether light ... light is a transverse wave was established only after the discovery of the phenomenon of polarization.

Diffraction and interference demonstrate which of the following? w) particle nature of light x) wave nature of light y) polarization of light z) refraction of light

Description : Diffraction and interference demonstrate which of the following? w) particle nature of light x) wave nature of light y) polarization of light z) refraction of light

Last Answer : ANSWER: X -- WAVE NATURE OF LIGHT

Light is normally incident on a thin soap film and is reflected. If the wavelength of this light is "L" and the index of refraction of the soap film is "N", complete destructive interference will occur for a film thickness of: w) L / 8N x) L / 4N y) L / 2N z) 3L / 4N

Description : Light is normally incident on a thin soap film and is reflected. If the wavelength of this light is "L" and the index of refraction of the soap film is "N", complete destructive interference will occur for a film thickness of: w) L / 8N x) L / 4N y) L / 2N z) 3L / 4N

Last Answer : ANSWER: Y -- L / 2N 

Which of the following phenomenon helps to conclude that light is a transverse wave? (1) interference (2) diffraction (3) polarisation (4) refraction

Description : Which of the following phenomenon helps to conclude that light is a transverse wave? (1) interference (2) diffraction (3) polarisation (4) refraction

Last Answer : polarisation

A mirage occurs because of – (1) Reflection by hot ground (2) Total internal reflection by layers of air (3) Interference of light (4) Diffraction of light

Description : A mirage occurs because of – (1) Reflection by hot ground (2) Total internal reflection by layers of air (3) Interference of light (4) Diffraction of light

Last Answer : (2) Total internal reflection by layers of air Explanation: A mirage is a naturally occurring optical phenomenon in which light rays are bent to produce a displaced image of distant objects or the ... -changing mirage. Cold air is denser than warm air and has therefore a greater refractive index.

The phenomenon which causes mirage is – (1) Interference (2) Diffraction (3) Polarisation (4) Total internal reflection

Description : The phenomenon which causes mirage is – (1) Interference (2) Diffraction (3) Polarisation (4) Total internal reflection

Last Answer : (4) Total internal reflection Explanation: Mirage is caused by total internal reflection in deserts where due to heating of the earth, refractive index of air near the surface of earth becomes lesser than ... ray of light coming from a distant object gets refracted from a denser to a rarer medium.

What is the phenomenon which established the transverse nature of light? (1) Reflection (2) Interference (3) Diffraction (4) Polarisation

Description : What is the phenomenon which established the transverse nature of light? (1) Reflection (2) Interference (3) Diffraction (4) Polarisation

Last Answer : (4) Polarisation Explanation: The phenomena which proves the transverse nature alight is polarization. Since the intensity of polarized light on passing through a tourmaline crystal changes, ... waves. Transverse waves are waves that are oscillating perpendicularly to the direction of propagation

A thin oil film on a water surface appears coloured because of – (1) reflection (2) interference (3) diffraction (4) polarization

Description : A thin oil film on a water surface appears coloured because of – (1) reflection (2) interference (3) diffraction (4) polarization

Last Answer : (2) interference Explanation: A thin oil film on a water surface appears coloured because of thin-film interference which involves the interference of light waves reflecting off the top surface of a film with the waves reflecting from the bottom surface.

A soap bubble shows colours when illuminated with white light. This is due to – (1) Diffraction (2) Polarization (3) Interference (4) Reflection

Description : A soap bubble shows colours when illuminated with white light. This is due to – (1) Diffraction (2) Polarization (3) Interference (4) Reflection

Last Answer : (3) Interference Explanation: The iridescent colours of soap bubbles are caused by interfering of (internally and externally) reflected light waves and are determined by the thickness of the film. This phenomenon ... are the same as the phenomenon causing the colours in an oil slick on a wet road.

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.

What is the phenomenon which established the transverse nature of light ? (1) Reflection (2) Interference (3) Diffraction (4) Polarisation

Description : What is the phenomenon which established the transverse nature of light ? (1) Reflection (2) Interference (3) Diffraction (4) Polarisation

Last Answer : Polarisation

The phenomenon which causes mirage is (1) Interference (2) Diffraction (3) Polarisation (4) Total internal reflection

Description : The phenomenon which causes mirage is (1) Interference (2) Diffraction (3) Polarisation (4) Total internal reflection

Last Answer : Total internal reflection

A thin oil film on a water surface appears coloured because of (1) reflection (2) interference (3) diffraction (4) polarization

Description : A thin oil film on a water surface appears coloured because of (1) reflection (2) interference (3) diffraction (4) polarization

Last Answer : interference

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 soap bubble shows colours when illuminated with white light. This is due to (1) Diffraction (2) Polarisation (3) Interference (4) Reflection

Description : A soap bubble shows colours when illuminated with white light. This is due to (1) Diffraction (2) Polarisation (3) Interference (4) Reflection

Last Answer : Interference

A mirage occurs because of (1) reflection by hot ground (2) total internal reflection by layers of air (3) interference of light (4) diffraction of light

Description : A mirage occurs because of (1) reflection by hot ground (2) total internal reflection by layers of air (3) interference of light (4) diffraction of light

Last Answer : total internal reflection by layers of air

An Electromagnetic wave falls on to a boundary between two losses less homogeneous media with different refractive indices, a part of the wave is reflected back to the incident medium and the rest is transmitted on to the second media". This phenomenon is known as: (A) Fresnel reflection (B) Fresnel refraction (C) Snell's law (D) None of these

Description : An Electromagnetic wave falls on to a boundary between two losses less homogeneous media with different refractive indices, a part of the wave is reflected back to the incident medium and the rest is transmitted ... A) Fresnel reflection (B) Fresnel refraction (C) Snell's law (D) None of these

Last Answer : Answer: Option A

The refractive indices of four media A, B, C and D are given in the following table: light-reflection-and-refraction-chapter-wise-important-questions-class-10-science-9 If light, travels from one medium to another, in which case the change in speed will be (i) minimum, (ii) maximum? -Physics

Description : The refractive indices of four media A, B, C and D are given in the following table: light-reflection-and-refraction-chapter-wise-important-questions-class-10-science-9 If light, travels from one medium to another, in which case the change in speed will be (i) minimum, (ii) maximum? -Physics

Last Answer : (i) Minimum change is seen as light moves between 1.50 and 1.52, i.e. B and C. (ii) Maximum change when light moves between 1.33 and 2.40, i.e. A and D.

If a light ray IM is incident on the surface AB as shown, identify the correct emergent ray. light-reflection-and-refraction-chapter-wise-important-questions-class-10-science-8 -Physics

Description : If a light ray IM is incident on the surface AB as shown, identify the correct emergent ray. light-reflection-and-refraction-chapter-wise-important-questions-class-10-science-8 -Physics

Last Answer : Ray NQ, as it has to be parallel to ray OS.

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.

‘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.