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The magnifying power of a telescope in n...

The magnifying power of a telescope in normal adjustment is greater than that when it is focussed for least distance ofdistinct vision. Is this true or false? Give reasons.

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PHYSICS GALAXY - ASHISH ARORA-GEOMETRICAL OPTICS-Discussion Question
  1. What is the function of the circular stop at the focal plane of the ob...

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  2. A beam of white lighe passing through a hollow prism gives no spectrum...

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  3. The magnifying power of a telescope in normal adjustment is greater th...

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  4. Can you think of a specific optical set up with a trihedral prism (no ...

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  5. Can a real image be taken on a screen ?

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  6. Can you obtain image produced by a convexlens on a screen without usin...

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  7. It is difficult to thread a needle with one eye closed. Why?

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  8. If a single lens isused to form an image, it is better to use a lens o...

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  9. What is the best position of the eye for viewing an object through a m...

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  10. Can the optical length between two points everbeless than the geometri...

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  11. Can two lenses of the same material produce achromatism when placed in...

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  12. Why is the aperture of objective lens of a telescope taken large ?

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  13. A iiver inside the sea observes a ship on the water surface. Does he f...

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  14. Why does the moon, purely white during the day, have a yellowish hue a...

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  15. How focal length of a spherical mirror changes when placed in differen...

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  16. An air bubble inside water broadly behaves as a concave lens. Is the t...

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  17. Why does an aeroplane flying at a great altitude not cast a shadow on ...

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  18. The magnifying power of a telescope in normal adjustment is greater th...

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  19. When sun rays pass through a small hole in the foliage at the top of a...

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  20. If a mirror reverses right and left, why doesn't it reverse up and dow...

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