- 1(current)
Q. No.Time taken by sunlight to pass through a glass slab of thickness \(5~\text{mm}\) and refractive index \(1.5\) is:
1. \(\left(\frac{5}{3}\right) \times 10^{-8}~\text{s}\)
2. \(\left(\frac{5}{2}\right) \times 10^{-11}~\text{s}\)
3. \(\left(\frac{5}{3}\right) \times 10^{-11}~\text{s}\)
4. \(\left(\frac{5}{2}\right)\times 10^{-8}~\text{s}\)
1. \(\left(\frac{5}{3}\right) \times 10^{-8}~\text{s}\)
2. \(\left(\frac{5}{2}\right) \times 10^{-11}~\text{s}\)
3. \(\left(\frac{5}{3}\right) \times 10^{-11}~\text{s}\)
4. \(\left(\frac{5}{2}\right)\times 10^{-8}~\text{s}\)
Subtopic: Â Refraction at Plane Surface |
 64%
From NCERT
NEET - 2024
Please attempt this question first.
Hints
Please attempt this question first.
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 |
 60%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
A beam of light is incident vertically on a glass slab of thickness \(1\) 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. | \(10^{-10}\) s | 2. | \(5\times 10^{-10}\) s |
| 3. | \(10^{-11}\) s | 4. | \(5\times 10^{-11}\) s |
Subtopic: Â Refraction at Plane Surface |
 53%
From NCERT
NEET - 2022
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
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Q. No.
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