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प्रश्न
Which colour of white light travels fastest in glass?
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उत्तर
Red colour travels fastest.
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संबंधित प्रश्न
Name three factors on which the deviation produced by a prism depends and state how does it depend on the factors stated by you.
How does the deviation produced by a triangular prism depend on the colours (or wavelengths) of light incident on it?
In following diagram shows a thin beam of white light from a source S striking on one face of a prism.
A slit is placed in between the prism and the screen to pass only the light of green colour. What will you then observe on the screen?
Write the approximate wavelengths for blue.
Give a reason, why the violet colour of white light deviated most and red colour of white light deviated least.
What is understood by the term dispersion of light? What is its cause?
Explain, why quartz prism is required for obtaining the spectrum of ultra-violet light?
Which colour of white light travels slowest, in glass?
Write the approximate wavelength for red light.
