MHT-CET

Ray Optics and Optical Instruments question bank (Physics)

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Q1.

Which of the following is $NOT$ involved in the formation of a secondary rainbow?

(A)
Refraction
(B)
Angular dispersion
(C)
Interference
(D)
Total internal reflection
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Q2.

The focal length of the objective of an astronomical telescope is $1.5 \ m$. Under normal adjustment,the length of the telescope is $1.56 \ m$. The focal length of the eyepiece is: (in $m$)

(A)
$0.06$
(B)
$1.04$
(C)
$2.34$
(D)
$3.06$
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