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Find out from Table on page 225 the medi...

Find out from Table on page 225 the medium having highest optical density. Also find the medium with lowest optical density.

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LAKHMIR SINGH & MANJIT KAUR-REFLECTION OF LIGHT -Exercise
  1. A ray of light travelling in air enters obliquely into water. Does the...

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  2. Light enters from air into a glass plate having refractive index 1.50....

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  3. Find out from Table on page 225 the medium having highest optical dens...

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  4. You are given kerosene, turpentine and water. In which of these does t...

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  5. The refractive index of diamond is 2.42. What is the meaning of this s...

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  6. Define one dioptre of power of a lens.

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  7. A convex lens forms a real and inverted image of a needle at a distanc...

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  8. Find the power of a concave lens of focal length 2 m.

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  9. Which one of the following materials cannot be used to make a lens ?

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  10. The image formed by a concave mirror is observed to be virtual, erect ...

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  11. Where should an object be placed in front of a convex lens to get a re...

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  12. A spherical mirror and a thin spherical lens have each a focal length ...

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  13. No matter how far you stand from a spherical mirror, your image appear...

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  14. Which of the following lenses would you prefer to use while reading sm...

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  15. We wish to obtain an erect image of an object, using a concave mirror ...

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  16. Name the type of mirror used in the following situations : (a) Head ...

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  17. One half of a convex lens is covered with a black paper. Will this len...

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  18. An object 5 cm in length is held 25 cm away from a converging lens of ...

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  19. A convcave lens of focal length 15 cm forms an image 10 cm from the le...

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  20. An object is placed at a distance of 10 cm from a convex mirror of foc...

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