If refractive index of a prism is $$\mathrm{cot(A/2)}$$, then the minimum angle of deviation is:
1. $$180^{\circ}-A$$
2. $$180^{\circ}-2A$$
3. $$90^{\circ}-A$$
4. $$(A/2)$$

Subtopic: Â Prisms |
Â 87%
From NCERT
AIPMT - 1999
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NEET 2023 - Target Batch - Aryan Raj Singh
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To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The refractive index of the material of a prism is $\sqrt{2}$ and its refracting angle is $$30^{\circ}$$. One of the refracting surfaces of the prism is made a mirror inwards. A beam of monochromatic light entering the prism from the other face will retrace its path after reflection from the mirrored surface if its angle of incidence on the prism is:
1. $$60^{\circ}$$
2. $$0^{\circ}$$
3. $$30^{\circ}$$
4. $$45^{\circ}$$

Subtopic: Â Prisms |
Â 79%
From NCERT
AIPMT - 2004
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
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