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प्रश्न
A ray of light makes an angle of 50° with the surface S1 of the glass slab. Its angle of incidence will be ______.
पर्याय
50°
40°
140°
0°
MCQ
रिकाम्या जागा भरा
उत्तर
A ray of light makes an angle of 50° with the surface S1 of the glass slab. Its angle of incidence will be 40°.
Explanation:
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