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Which light rays undergoes two internal ...

Which light rays undergoes two internal reflection inside a raindrop, which of the rainbow is formed?

A

Primary rainbow

B

Secondary rainbow

C

Both (a) and (b)

D

Can’t say

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DISHA-RAY OPTICS AND OPTICAL INSTRUMNTS-PHYSICS
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  2. A telescope has an objective of focal length 100 cm and an eyepiece of...

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  3. Which light rays undergoes two internal reflection inside a raindrop, ...

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  4. When a plane mirror is placed horizontally on level ground at a distan...

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  5. A parallel beam of light is incident on the surface of a transparent h...

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  6. A lens made of glass whose index of refraction is 1.60 has a focal len...

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  7. A compound microscope has an eye piece of focal length 10 cm and an ob...

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  8. For a prism kept in air, it is found that for an angle of incidence 60...

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  9. A person can see clearly only upto a distance of 25 cm. He wants to re...

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  10. An object is placed at a distance of 40 cm in front of a concave mirro...

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  11. A vessel of depth d is half filled with a liquid of refractive index m...

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  12. The following figure shows refraction of light at the interface of thr...

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  13. Light travels in two media A and B with speeds 1.8 × 10^(8) m s^(–1) a...

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  14. The refractive index of a glass is 1.520 for red light and 1.525 for b...

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  15. Which of the following is not due to total internal reflection ?

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  16. A body is located on a wall. Its image of equal size is to be obtained...

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  17. A concave mirror forms the image of an object on a screen. If the lowe...

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  18. A ray of light passes through an equilateral prism (refractive index 1...

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  19. The power of a biconvex lens is 10 dioptre and the radius of curvature...

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  20. A microscope is focused on a mark on a piece of paper and then a slab ...

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