SATHEE: Optics Question 953

Optics Question 953

Question: r and r? denote the angles inside an equilateral prism, as usual, in degrees. Consider that during some time interval from $t = 0$ to $t = t, r^{'}$ varies with time as $r^{'} = 10 + t^{2} .$ During this time r will vary as: (Assume that r and r? are in degree):

Options:

A) $50 - t^{2}$

B) $50 + t^{2}$

C) $60 - t^{2}$

D) $60 + t^{2}$

Show Answer

Answer:

Correct Answer: A

Solution:

[a] In a prism $r + r^{'} = A$

$\Rightarrow$ $r = A - r^{'}$

$∴$ $r = 60^{0} - (10 + t^{2}) = 50 - t^{2}$

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Optics Question 953

Question: r and r? denote the angles inside an equilateral prism, as usual, in degrees. Consider that during some time interval from t=0 to t=t,r′ varies with time as r′=10+t2. During this time r will vary as: (Assume that r and r? are in degree):

Options:

Answer:

Solution:

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Question: r and r? denote the angles inside an equilateral prism, as usual, in degrees. Consider that during some time interval from $t = 0$ to $t = t, r^{'}$ varies with time as $r^{'} = 10 + t^{2} .$ During this time r will vary as: (Assume that r and r? are in degree):