- 1(current)
Q. No.If the critical angle for total internal reflection from a medium to vacuum is , the velocity of light in the medium is:
1. \(1.5\times10^{8}\) m/s
2. \(\frac{3}{\sqrt{2}}\times10^{8}\) m/s
3. \(\sqrt{2}\times10^{8}\) m/s
4. \(3\times10^{8}\) m/s
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn 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
2. 180
3. 0
4. equal to the angle of incidence
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology1. tan-1 (0.750)
2. sin-1 (0.500)
3. sin-1 (0.750)
4. tan-1 (0.500)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 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. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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