Doubt of Ray Optics..... Q.G2 and G3......... Thank you Answer is B for G2 and A for G3
Subinoy Karmakar , 6 Years ago
Grade
Wave Optics> Doubt of Ray Optics..... Q.G2 and G3........
1 Answers
Arun
Last Activity: 6 Years ago
Dear student
u is refractive index
R = 2 f = r / u – 1
56 = r / u – 1
when curved surface is silvered
R = 2 * 10 = 20 = r / u
Now
56 / 20 = u / u – 1
1 – 1/u = 20/56 = 5/14
9/14 = 1/u
u = 14 / 9 = 1.555
Regards
Arun
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