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The solar eclipse achieves totality only...

The solar eclipse achieves totality only in limited geographical region because

A

The trajectories of the earth around the sun and the moon around the earth are not perfect circles

B

The size of the shadow of moon on the earth is small compared to the ctoss-section of the earth

C

The earth is not a smooth flat surface, but has elevations and depressions

D

none of these

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The correct Answer is:
B
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S CHAND IIT JEE FOUNDATION-LIGHT-SELF ASSESSMENT SHEET -4
  1. The solar eclipse achieves totality only in limited geographical regio...

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  2. Answer true or false Penumbra is a region of partial darkncss.

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  3. Answer true or false Shadows are long when sun is overhead.

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  4. Answer true or false An wooden plank is an opaque object

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  5. Answer true or false Umbra is a region of complete darkness.

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  6. Answer true or false Lunar eclipse occurs on new moon

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  7. Answer true or false Objects which emit their own light are called n...

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  8. Answer true or false No shadow is formed when light passes through ...

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  9. Match correctly:

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  10. Give reasons for the following: If there is a glass door and is clos...

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  11. Give reasons for the following: Although the moon is non-luminous, i...

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  12. Give reasons for the following: Silvered surfaces are used behind li...

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  13. Give reasons for the following: If you pass under a tree covered wit...

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  14. Put the following objects correcly in the given Venn diagram cardboa...

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  15. Shadows are formed by

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  16. As the object moves closer to a light source, the shadow

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  17. What kind of material is tissue paper ?

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  18. We are able to see moon because

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  19. Which of the following are correct statements An opaque object

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  20. It is not possible to see a burning candle by using a bent pipe becaus...

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  21. During shadow formation, penumbra is seen

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