Advertisements
Advertisements
प्रश्न
A ray of light passes through equilateral prism such that the angle of incidence is equal to angle of emergence and each of these angles is equal to `(3/4)^"th"` the angle of prism. The angle of deviation is ______.
पर्याय
35°
20°
40°
30°
MCQ
रिकाम्या जागा भरा
उत्तर
A ray of light passes through equilateral prism such that the angle of incidence is equal to angle of emergence and each of these angles is equal to `(3/4)^"th"` the angle of prism. The angle of deviation is 30°.
Explanation:
`"i"=e=(3A)/4`
i + e = A + δ
δ = i + e - A =2i - A `=(3A)/2-A=A/2=30^circ`
shaalaa.com
या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
