JEE PHYSICS MCQ: RAY OPTICS

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Understanding +4 | -1

Beams of red, green and violet light are falling on the refracting face of a prism, all at the same angle of incidence, if their angles of deviation are

{\theta _1},\,\,{\theta _2}

and

{\theta _3}

respectively, then

View answer and explanation

Correct option: B

{\theta _1} < \,\,\,{\theta _2} < \,\,\,{\theta _3}

Option B (

{\theta _1} < {\theta _2} < {\theta _3}

) is correct because the angle of deviation increases as the wavelength decreases, with violet having the shortest wavelength and red having the longest.

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