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What is the reason for the twinkling of ...

What is the reason for the twinkling of star:?

A

Explosion occuring in stars from time to time

B

Absorbtion of light in the earth's atmosphere

C

Motion of stars

D

Changing refractive index of the atmospheric gases

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The correct Answer is:
D
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NAVNEET PUBLICATION-REFRACTION OF LIGHT-EXERCISE
  1. Choose the correct alternative and write it along with its allotted al...

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  2. Choose the correct alternative and write it along with its allotted al...

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  3. What is the reason for the twinkling of star:?

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  4. We can see the sun even when it is little below the horizon because of...

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  5. If the refractive index of glass with respect to air is frac(3)(2) the...

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  6. State whether the following statements are True or False : The incid...

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  7. State whether the following statements are True or False : < br> the r...

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  8. State whether the following statements are True or False : When a lig...

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  9. State whether the following statements are True or False : When a lig...

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  10. True/false: If angle of incidence is zero,then the angle of refraction...

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  11. State whether the following statements are True or False : < br> In di...

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  12. State whether the following statements are True or False : < br> In va...

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  13. State whether the following statements are True or False : < br> In gl...

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  14. State whether the following statements are True or False : < br> In a ...

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  15. State whether the following statements are True or False : ...

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  16. State whether the following statements are True or False : < br> The ...

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  17. State whether the following statements are True or False : < br> The w...

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  18. State whether the following statements are True or False : The refra...

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  19. Find the odd one out and give the reason: Reflection, Neutralization...

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  20. Wavelength of red light is :

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