- 1(current)
Q. No.A light ray falls on a glass surface of refractive index \(\sqrt{3}\), at an angle of \(60^\circ.\) The angle between the refracted and reflected rays would be:
| 1. | \(120^\circ\) | 2. | \(30^\circ\) |
| 3. | \(60^\circ\) | 4. | \(90^\circ\) |
Subtopic: Â Refraction at Plane Surface |
 62%
From NCERT
NEET - 2022
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A beam of light is incident vertically on a glass slab of thickness \(1~\text{cm},\) and refractive index \(1.5.\) A fraction \(A\) is reflected from the front surface while another fraction \(B\) enters the slab and emerges after reflection from the back surface. The time delay between them is:
| 1. | \(10^{-10}~\text{s}\) | 2. | \(5\times 10^{-10}~\text{s}\) |
| 3. | \(10^{-11}~\text{s}\) | 4. | \(5\times 10^{-11}~\text{s}\) |
Subtopic: Â Refraction at Plane Surface |
 58%
From NCERT
NEET - 2022
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An air bubble in a glass slab \((\mu=1.5) \) is \(5\) cm deep when viewed from one face and \(2\) cm deep when viewed from the opposite face. The thickness of the slab is:
1. \(10\) cm
2. \(7.5\) cm
3. \(10.5\) cm
4. \(7\) cm
1. \(10\) cm
2. \(7.5\) cm
3. \(10.5\) cm
4. \(7\) cm
Subtopic: Â Refraction at Plane Surface |
 81%
From NCERT
Please attempt this question first.
Hints
Please attempt this question first.
As light traverses through an optical medium, it is observed that its wavelength decreases.
| Statement I: | In this case, the frequency of light increases. |
| Statement II: | In the above case, the refractive index of the medium increases. |
| 1. | Statement I is incorrect and Statement II is correct. |
| 2. | Both Statement I and Statement II are correct. |
| 3. | Both Statement I and Statement II are incorrect. |
| 4. | Statement I is correct and Statement II is incorrect. |
Subtopic: Â Refraction at Plane Surface |
 65%
From NCERT
To view explanation, please take trial in the course.
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Hints
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Q. No.
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