ICSE /Class 10
Physics MCQ Based On Using a triangular prism to produce a visible spectrum from white light electromagnetic spectrum
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ICSE Class 10 Physics Using a triangular prism to produce a visible spectrum from white light electromagnetic spectrum
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Speed of light increases with increase in its wavelength in glass.
As the red light has the highest wavelength among all the colours, so it is scattered the least.
f=c/λ=(3×〖10〗^8)/(800× ã€–10〗^(-9) )=3.75×〖10〗^14 Hz.
Gamma rays has highest frequency hence it is the most energetic electromagnetic radiation.
Colour's speed is maximum in a glass.
Scattering is most when wavelength of light is less than the size of the particle of air.
As the indigo light has the lowest wavelength among given colours, so it is scattered the most.
Gamma rays, X –rays, Ultraviolet rays, Visible light, Infrared radiations, Microwaves, Radio waves is correct sequence.
Heated metal can produce infrared radiations.
Intensity of scattered light I∝1/λ^4 .
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