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Dispersion of White Light by Glass Prism

Which of the ...

Question

Which of the following coloured light has the least speed in glass prism ?
(a) violet (b) yellow (c) red (d) green

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Solution

Answer : (a) violet. Because violet have smaller wavelegth.

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Similar questions

Q. Which of the following coloured light has the least speed in glass prism?
(a) violet
(b) yellow
(c) red
(d) green

Q. Which of the following colour of white light is least deviated by the prism?
(a) green
(b) violet
(c) indigo
(d) yellow

Q. Is the speed of light in glass independent of the colour of light? If not, which of the two colours (red and violet) travels slower in a glass prism?

Q. Which of the following colour of white light has the least wavelength ?
(a) red (b) orange (c) violet (d) blue

Q. Que. (A) The refractive index of glass is 1.5. What is the speed of light in glass? ( speed of light in vacuum is

3.0 \times 10^{8} m s^{- 1})

(B) Is the speed of light in glass independent to the colour of light? Which of the two Colour red and violet travels slower in glass prism?

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