- 1(current)
Q. No.Light travels a distance \(x\) in time \(t_1\) in air and \(10x\) in time \(t_2\) in another denser medium. What is the critical angle for this medium?
| 1. | \(\sin ^{-1}\left(\frac{10 t_1}{t_2}\right) \) | 2. | \(\sin ^{-1}\left(\frac{ t_2}{t_1}\right) \) |
| 3. | \(\sin ^{-1}\left(\frac{10 t_2}{t_1}\right) \) | 4. | \(\sin ^{-1}\left(\frac{ t_1}{10t_2}\right) \) |
Subtopic: Â Total Internal Reflection |
 64%
From NCERT
NEET - 2023
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Which set of colors will come out in air for a situation shown in figure?
| 1. | Yellow, Orange and Red |
| 2. | Blue, Green and Yellow |
| 3. | Orange, Red and Violet |
| 4. | All |
Subtopic: Â Total Internal Reflection |
 72%
From NCERT
NEET - 2023
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Two transparent media \(\mathrm{A}\) and \(\mathrm{B}\) are separated by a plane boundary. The speed of light in those media are \(1.5\times 10^{8} \) m/s and \(2.0\times 10^{8} \) m/s, respectively. The critical angle for a ray of light for these two media is:
| 1. | \(\mathrm{tan^{-1}}\)(\(0.750\)) | 2. | \(\mathrm{sin^{-1}}\)(\(0.500\)) |
| 3. | \(\mathrm{sin^{-1}}\)(\(0.750\)) | 4. | \(\mathrm{tan^{-1}}\)(\(0.500\)) |
Subtopic: Â Total Internal Reflection |
 79%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
During a cloudy day, a primary and a secondary rainbow may be created. Which of the following statement is correct?
| 1. | primary rainbow is due to double internal reflection and is formed above the secondary one. |
| 2. | primary rainbow is due to double internal reflection and is formed below the secondary one. |
| 3. | secondary rainbow is due to double internal reflection and is formed above the primary one. |
| 4. | secondary rainbow is due to a single internal reflection and is formed above the primary one. |
Subtopic: Â Total Internal Reflection |
 67%
From NCERT
NEET - 2022
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
If the critical angle for total internal reflection from a medium to vacuum is \(45^{\circ}\), the velocity of light in the medium is:
| 1. | \(1.5\times10^{8}~\text{m/s}\) | 2. | \(\frac{3}{\sqrt{2}}\times10^{8}~\text{m/s}\) |
| 3. | \(\sqrt{2}\times10^{8}~\text{m/s}\) | 4. | \(3\times10^{8}~\text{m/s}\) |
Subtopic: Â Total Internal Reflection |
 81%
From NCERT
NEET - 2020
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
Pick the wrong statement in the context with a rainbow.
| 1. | Rainbow is a combined effect of dispersion, refraction, and reflection of sunlight. |
| 2. | When the light rays undergo two internal reflections in a water drop, a secondary rainbow is formed. |
| 3. | The order of colors is reversed in the secondary rainbow. |
| 4. | An observer can see a rainbow when his front is towards the sun. |
Subtopic: Â Total Internal Reflection |
 74%
From NCERT
NEET - 2019
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NEET 2023 - Target Batch - Aryan Raj Singh
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NEET 2023 - Target Batch - Aryan Raj Singh
In total internal reflection when the angle of incidence is equal to the critical angle for the pair of media in contact, what will be the angle of refraction?
| 1. | \(90^{\circ}\) |
| 2. | \(180^{\circ}\) |
| 3. | \(0^{\circ}\) |
| 4. | equal to the angle of incidence |
Subtopic: Â Total Internal Reflection |
 74%
From NCERT
NEET - 2019
To view explanation, please take trial in the course.
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
- 1(current)
Q. No.
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