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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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Heated metal can produce infrared radiations.
Scattering is most when wavelength of light is less than the size of the particle of air.
As the yellow light has the highest wavelength among given colours, so it is scattered the least.
Wavelength of Gamma rays is shorter than 0.1 â„« Angstrom
As the indigo light has the lowest wavelength among given colours, so it is scattered the most.
Color's speed is minimized in a glass.
Blue light is scattered in all directions by the tiny molecules of air in Earth's atmosphere. Blue is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.
Intensity of scattered light I∝1/λ^4 .
Ultraviolet rays, X- rays and Gamma rays have wavelength shorter than violet part of the visible spectrum.
f=c/λ=(3×〖10〗^8)/(4000× ã€–10〗^(-10) )=0.75×〖10〗^15 Hz.
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