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Question
Statement 1: When a white light ray passes through a prism it disperses into seven different colours, and this phenomenon is called dispersion.
Statement 2: Refraction depends upon the wavelength of light and since different colours have different wavelengths, they are refracted at a different angle.
Statement 1: When a white light ray passes through a prism it disperses into seven different colours, and this phenomenon is called dispersion.
Statement 2: Refraction depends upon the wavelength of light and since different colours have different wavelengths, they are refracted at a different angle.
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Solution
The correct option is D Statement 2 is correct
Any light that is composed of more than one colour is a composite light.
Dispersion is the phenomenon of splitting up of composite light into its constituent colours. During dispersion, white light is split into its 7 constituent colours.
Different colours have different wavelength and refraction depends upon the wavelength of light, so they are refracted at a different angle and hence split into the colour spectrum.
Statement 2 is correct
Any light that is composed of more than one colour is a composite light.
Dispersion is the phenomenon of splitting up of composite light into its constituent colours. During dispersion, white light is split into its 7 constituent colours.
Different colours have different wavelength and refraction depends upon the wavelength of light, so they are refracted at a different angle and hence split into the colour spectrum.
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