Question

among all the colors in VIBGYOR . which color has maximum velocity and which color has minimum velocity,when it is passing through the glass​

Answer 1

Answer:

The velocity of light is given by v= fλ where f is the frequency and λ is the wavelength.

When travelling through a medium the frequency remains unchanged and hence, speed depends upon the wavelength of light. Red light having maximum wavelength travels fastest.

Answer 2

Given :- Among all the colors in VIBGYOR . which color has maximum velocity and which color has minimum velocity, when it is passing through the glass ?

Answer :-

we know that,

• Velocity of light ∝ Wavelength .

and,

• Among colors VIBGYOR lowest wavelength = Violet .
• Among colors VIBGYOR highest wavelength = red .

then,

• Among colors VIBGYOR maximum velocity in glass = Red .
• Among colors VIBGYOR minimum velocity in glass = Violet .

[ Note :- In VIBGYOR , the wavelength of light is in increasing order . ]

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