What is the phenomenon of splitting white light into seven colours?

What is the phenomenon of splitting white light into seven colours?
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Answer :

Dispersion
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Pick up the correct statement from the following: (A) The refractive index of a medium varies according to the wavelength of the radiation, (B) The variation of the refractive index with wave length, is called dispersion, (C) The splitting of colours of white light by passing through a prism is caused due to dispersion (D) All of these

Description : Pick up the correct statement from the following: (A) The refractive index of a medium varies according to the wavelength of the radiation, (B) The variation of the refractive index with wave length, ... of white light by passing through a prism is caused due to dispersion (D) All of these

Last Answer : Answer: Option D

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.

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

"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.

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

The band of seven colours obtained due to the dispersion of white light is called?

Description : The band of seven colours obtained due to the dispersion of white light is called?

Last Answer : Visible Spectrum

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.

Dispersion is used to describe the a. Splitting of white light into its component colors b. Propagation of light in straight lines c. Bending of a beam of light when it goes from one medium to another d. Bending of a beam light when it strikes a mirror

Description : Dispersion is used to describe the a. Splitting of white light into its component colors b. Propagation of light in straight lines c. Bending of a beam of light when it goes from one medium to another d. Bending of a beam light when it strikes a mirror

Last Answer : a. Splitting of white light into its component colors

Dispersion is used to describe the ∙ a. Splitting of white light into its component colors ∙ b. Propagation of light in straight lines ∙ c. Bending of a beam of light when it goes from one medium to another ∙ d. Bending of a beam light when it strikes a mirror

Description : Dispersion is used to describe the ∙ a. Splitting of white light into its component colors ∙ b. Propagation of light in straight lines ∙ c. Bending of a beam of light when it goes from one medium to another ∙ d. Bending of a beam light when it strikes a mirror

Last Answer : a. Splitting of white light into its component colors

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

When a CD (Compact Disc used in audio and Video system) is seen in sunlight, rainbow like colours are seen. This can be explained on the basis of phenomenon of 1) reflection and diffraction 2) reflection and transmission 3) diffraction and transmission 4) refraction, diffraction and transmission

Description : When a CD (Compact Disc used in audio and Video system) is seen in sunlight, rainbow like colours are seen. This can be explained on the basis of phenomenon of 1) reflection and diffraction 2) reflection and transmission 3) diffraction and transmission 4) refraction, diffraction and transmission

Last Answer : 4) refraction, diffraction and transmission

Sunlight is composed of------? A. Three colours B. six colours C. seven colours (Answer) D. eight colours

Description : Sunlight is composed of------? A. Three colours B. six colours C. seven colours (Answer) D. eight colours

Last Answer : C. seven colours (Answer)

When white light passes through a glass prism, it gets dispersed into colours because (a) glass imparts colours to the light (b) different colours have different speeds in glass (c) interference of light occurs (d) diffraction of light occurs

Description : When white light passes through a glass prism, it gets dispersed into colours because (a) glass imparts colours to the light (b) different colours have different speeds in glass (c) interference of light occurs (d) diffraction of light occurs

Last Answer : Ans:(b)

Which of the following is used to split white light into different colours? (1) Glass slab (2) Convex lens (3) Concave lens (4) Prism

Description : Which of the following is used to split white light into different colours? (1) Glass slab (2) Convex lens (3) Concave lens (4) Prism

Last Answer : (4) Prism Explanation: In optics, a prism is a transparent optical element with flat, polished surfaces that refract light. At least two of the flat surfaces must have an angle between them. The ... a triangular base and rectangular sides, and in colloquial use "prism" usually refers to this type.

When white light is passed through a prism, it splits into ----- colours. A. 5 B. 6 C. 7 (Answer) D. 8

Description : When white light is passed through a prism, it splits into ----- colours. A. 5 B. 6 C. 7 (Answer) D. 8

Last Answer : C. 7 (Answer)

Which of the following is used to split white light into different colours ? (1) Glass slab (2) Convex lens (3) Concave lens (4) Prism

Description : Which of the following is used to split white light into different colours ? (1) Glass slab (2) Convex lens (3) Concave lens (4) Prism

Last Answer : Prism

When viewed in white light, why do soap bubbles show colours? -Do You Know?

Description : When viewed in white light, why do soap bubbles show colours? -Do You Know?

Last Answer : When viewed in white light, a soap bubble shows colours because of. Due to interference, when soap bubble is viewed in white light it shows colours.

What are primary colours? (a) Colours of the rainbow (b) Colours in the spectrum of white light (c) Colours which cannot be produced by mixing other colours (d) Colours found in nature

Description : What are primary colours? (a) Colours of the rainbow (b) Colours in the spectrum of white light (c) Colours which cannot be produced by mixing other colours (d) Colours found in nature

Last Answer : Ans:(c)

The sky appears blue because – (1) All colours interfere to produce blue (2) In white light, the blue component dominates (3) The atmosphere scatters blue colour more than the others (4) It is actually blue

Description : The sky appears blue because – (1) All colours interfere to produce blue (2) In white light, the blue component dominates (3) The atmosphere scatters blue colour more than the others (4) It is actually blue

Last Answer : (3) The atmosphere scatters blue colour more than the others Explanation: Diffuse sky radiation is solar radiation reaching the Earth's surface after having been scattered from the direct solar beam by ... the atmosphere (approximately 25% of the incident radiation when the sun is high in the Sky.

The sky appears blue because – (1) All colours interfere to produce blue (2) In white light, the blue component dominates (3) The atmosphere scatters blue colour more than the others (4) It is actually blue

Description : The sky appears blue because – (1) All colours interfere to produce blue (2) In white light, the blue component dominates (3) The atmosphere scatters blue colour more than the others (4) It is actually blue

Last Answer : (3) The atmosphere scatters blue colour more than the others Explanation: Diffuse sky radiation is solar radiation reaching the Earth's surface after having been scattered from the direct solar beam by ... the atmosphere (approximately 25% of the incident radiation when the sun is high in the Sky.

A ray of white light strikes the surface of an object. If all the colours are reflected, the surface would appear (1) Black (2) White (3) Grey (4) Opaque

Description : A ray of white light strikes the surface of an object. If all the colours are reflected, the surface would appear (1) Black (2) White (3) Grey (4) Opaque

Last Answer : (2) White Explanation: Objects do not have any colour of their own. When light hits a surface, some of it is absorbed and some of it is reflected. The light that is reflected is ... appear white when they reflect all the wavelengths; they appear black when they absorb all visible wavelengths.

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

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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.

When viewed in white light, why do soap bubbles show colours?

Description : When viewed in white light, why do soap bubbles show colours?

Last Answer : Because of interference

which of the following statements is not true for scattering of light? (a) Colour of the scattered tight depends on the size of particles of the atmosphere. (b) Red light is least scattered in the atmosphere. (c) Scattering of light Lakes place as various colours of white light travel with different speed in fir. d) The fine particles in the atmospheric air scatter the blue, light more strongly than red. So the scattered blue light enters our eyes.

Description : which of the following statements is not true for scattering of light? (a) Colour of the scattered tight depends on the size of particles of the atmosphere. (b) Red light is least scattered in the ... air scatter the blue, light more strongly than red. So the scattered blue light enters our eyes.

Last Answer : (c) Scattering of light Lakes place as various colours of white light travel with different speed in fir.

The image shows the dispersion of the white light in the prism. What will be the colours of the X, Y and Z? (a) X: red; Y: green; Z: violet (b) X: violet; Y: green; Z: red (c) X: green; Y: violet; Z: red (d) X: red; Y: violet; Z: green

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Last Answer : (b) X: violet; Y: green; Z: red

The sky appears blue because (1) all colours interfere to produce blue (2) in white light, the blue component dominates (3) the atmosphere scatters blue colour more than the others (4) it is actually blue

Description : The sky appears blue because (1) all colours interfere to produce blue (2) in white light, the blue component dominates (3) the atmosphere scatters blue colour more than the others (4) it is actually blue

Last Answer : the atmosphere scatters blue colour more than the others

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

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Last Answer : Interference

Splitting of light into its constituent colors is known as what?

Description : Splitting of light into its constituent colors is known as what?

Last Answer : Dispersion

One scientist cultured Cladophora in a suspension of Azotobacter and illuminated the culture by splitting light through a prism. He observed that bacteria accumulated mainly in the region of (a) violet and green light (b) indigo and green light (c) orange and yellow light (d) blue and red light.

Description : One scientist cultured Cladophora in a suspension of Azotobacter and illuminated the culture by splitting light through a prism. He observed that bacteria accumulated mainly in the region of (a) violet and green light (b) indigo and green light (c) orange and yellow light (d) blue and red light.

Last Answer : (d) blue and red light.

Purpose of an optical filter is to – (1) reflect lights of different colours (2) dispense light into component colours (3) refract light of different colours (4) transmit or absorb light of different colours

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Last Answer : (4) transmit or absorb light of different colours Explanation: Optical filters are devices that selectively transmit light in a particular range of wavelengths, that is, colors, while ... as absorptive filters), fluorescence microscopy, spectroscopy, clinical chemistry, colour stage lighting, etc.

Purpose of an optical filter is to (1) reflect lights of different colours (2) dispense light into component colours (3) refract light of different colours (4) transmit or absorb light of different colours

Description : Purpose of an optical filter is to (1) reflect lights of different colours (2) dispense light into component colours (3) refract light of different colours (4) transmit or absorb light of different colours

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Regarding the National Flag choose the correct options from the following statements i) It has a horizontal strip of three colours including deep saffron at the top, white in the middle, and dark green at the bottom. ii) The ratio of the flag width to its length is 2:3 -Science

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Last Answer : Both i and ii The National Flag of India has a horizontal strip of three colours including deep saffron (Kesaria) at the top, white in the middle, and dark green at the bottom. The ratio of the flag width to its length is 2:3.

Equal parts of a flag pole are painted with saffron, white, and green colours. If one-third of the portion painted green is 2 m long, then find the le

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A box contains 4 green, 5 red and 6 white balls. Three balls are drawn randomly. What is the probability that the balls drawn are of different colours? a) 24/91 b) 67/91 c) 21/91 d) 70/91 e) 3/13

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Last Answer : (c) blue

All the six faces of a cube of a cube are coloured with six different colours - black, brown, green, red, white and blue. 1. Red face is opposite to the black face. 2. Green face is between red and black faces. 3. Blue face is adjacent to white face. 4. Brown face is adjacent to blue face. 5. Red face is in the bottom. Which of the following is adjacent to green ? (a) Black, white, brown, red (b) Blue, black, red, white (c) Red, black, blue, white (d) None of these

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Why the primary colours of paints are different from the primary colours of light?

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