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What is the reason for the twinkling of ...

What is the reason for the twinkling of stars ?

A

Explosions occuring in the stars from time to time

B

Absorption of light in the earth's atmosphere

C

Motion of stars

D

Changing refractive index of the atmospheric gases

Text Solution

Verified by Experts

The correct Answer is:
D
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CHETAN PUBLICATION-REFRACTION OF LIGHT -Choose and write the correct option
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  4. When light ray passes from air to glass slab then it …………………. .

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  5. When light passes through glass slab, the incident ray and emergent ra...

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  6. When light ray travels from denser medium to rarer, then it ………………… .

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  7. The velocity of light in air is ………………..m/s.

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  8. Rakesh performs the experiments on tracing the path of a ray of light ...

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  9. When a ray of light travels from air to glass and strikes the surface ...

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  10. A ray of light incident from a denser medium passes through a rarer me...

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  11. The ray of light gets deviated when it passes from one medium to anoth...

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  12. A ray of light strikes the glass slab at an angle of 50^(@). What is t...

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  13. A glass-slab is placed in the path of convergent light. The point of ...

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  14. What is the speed of light in a transparent medium having absolute ref...

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  15. Which colour of light deviates the least in the spectrum obtained with...

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  16. The figure shows the path of ray of light propagating from medium 1 to...

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  17. After tracing the path of a ray of light through a glass prism, a stud...

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