- 1(current)
Q. No.A ray of monochromatic light is passing through an equilateral prism \((ABC)\) as shown in the figure. The refracted ray \((QR)\) is parallel to its base \((BC)\) and the angle of incidence \((i)\) is \(50^\circ\). Then the angle of deviation \((\delta)\) is:
| 1. | \(40^\circ\) | 2. | \(45^\circ\) |
| 3. | \(55^\circ\) | 4. | \(35^\circ\) |
Subtopic: Â Prisms |
 62%
Level 2: 60%+
NEET - 2026
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A light ray enters through a right-angled prism at point \(P\) with the angle of incidence \(30^\circ\) as shown in the figure. It travels through the prism parallel to its base \(BC\) and emerges along the face \(AC.\) The refractive index of the prism is:
| 1. | \({\dfrac{\sqrt5}{2}}\) | 2. | \({\dfrac{\sqrt3}{4}}\) |
| 3. | \({\dfrac{\sqrt3}{2}}\) | 4. | \({\dfrac{\sqrt5}{4}}\) |
Subtopic: Â Prisms |
Level 3: 35%-60%
NEET - 2024
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For a prism, when the light undergoes minimum deviation, the relationship between the angle of incidence \((i)\) and the angle of emergence \((i')\) is:
| 1. | \(i=i'\) | 2. | \(i>i'\) |
| 3. | \(i<i'\) | 4. | \(i=0\) |
Subtopic: Â Prisms |
 81%
Level 1: 80%+
NEET - 2024
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A horizontal ray of light is incident on the right-angled prism with prism angle \(6^\circ.\) If the refractive index of the material of the prism is \(1.5,\) then the angle of emergence will be:
| 1. | \(9^\circ\) | 2. | \(10^\circ\) |
| 3. | \(4^\circ\) | 4. | \(6^\circ\) |
Subtopic: Â Prisms |
 64%
Level 2: 60%+
NEET - 2023
Hints
Find the value of the angle of emergence from the prism given below for the incidence ray shown. The refractive index of the glass is \(\sqrt{3}\).
| 1. | \(45^{\circ}\) | 2. | \(90^{\circ}\) |
| 3. | \(60^{\circ}\) | 4. | \(30^{\circ}\) |
Subtopic: Â Prisms |
 59%
Level 3: 35%-60%
NEET - 2021
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A ray of light is incident at an angle of incidence, \(i\), on one face of a prism of angle A (assumed to be small) and emerges normally from the opposite face. If the refractive index of the prism is \(\mu\), the angle of incidence \(i\), is nearly equal to:
1. \(\mu A\)
2. \(\dfrac{\mu A}{2}\)
3. \(\frac{A}{\mu}\)
4. \(\frac{A}{2\mu}\)
Subtopic: Â Prisms |
 71%
Level 2: 60%+
NEET - 2020
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- 1(current)
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