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A person with a defective sight is using...

A person with a defective sight is using a lens having a power of +2D. The lens he is using is

A

concave lens with `f=0.5 m`

B

convex lens with `f=2.0 m`

C

concave lens with `f=0.2 m`

D

convex lens with `f=0.5 m`

Text Solution

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The correct Answer is:
D
N//a
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RESONANCE-GEOMATRICAL OPTICS -Exercise-1
  1. Resolving power of a microscope depends upon

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  2. An astronomical telescope has an eyepiece of focal-length 5cm. If the ...

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  3. A person with a defective sight is using a lens having a power of +2D....

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  4. The focal lengths of the objective and eye- lens of a microscope are 1...

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  5. If the focal length of objective and eye lens are 1.2 cm and 3 cm resp...

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  6. Find the angle fo deviation (both clockwise and anti-clock wise)suf...

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  7. Figures shows a plane mirror on which a light ray is incident, if t...

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  8. A light ray is incident on a plane mirror, which after getting refl...

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  9. Sun rays are incident at an angle of 24^(@) with the horizon. How ca...

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  10. Two plane mirrros are placed as shown in the figure and a point objec...

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  11. A point object is placed (0,0) and a plane mirror 'M' is placed, incl...

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  12. A rod of length 5cm lies along the principle axis of a concave mirrro...

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  13. A point source is at a distance 35cm on the optical axos from a sph...

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  14. Find the diameter of the image of the moon formed by a spherical conc...

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  15. The radius of curvature of a convex spherical mirror is 1.2m. How fa...

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  16. A converging beam of light rays in incident on a concave spherical ...

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  17. A point object is placed on the principle axis at 60cm in fornt ...

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  18. A man uses a concave mirror for shaving. He keeps his face at a dist...

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  19. Two spherical mirros (convex and concave) having the same focal leng...

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  20. A light ray falling an agnle of 60^(@) with the surface of a clean ...

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