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Convex lens of power +5 D and concave le...

Convex lens of power +5 D and concave lens with power -3D are placed together, then the combined power is____.

A

5 D

B

+3 D

C

2 D

D

-2 D

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CHETANA PUBLICATION-LENSES-Exercise
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  3. Convex lens of power +5 D and concave lens with power -3D are placed t...

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  4. In simple microscope, lens is used

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  5. The perception of dim light is concerned with cells. A. rod B. cone ...

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  7. If the incident ray passes through focus, then the refracted ray isto ...

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  11. Find the odd word out: Cornea, iris, pupil, cerebrum

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  12. Find odd word out: Spectacle, microscope, torch, camera

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  13. Find the odd word out: Long-sightedness, myopia, short sightedness, ne...

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  14. Find the odd word out :Presbyopia, night blindness, myopia, hypermetro...

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  15. Find odd word out: Spectacle, microscope, torch, camera

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  16. Convex lens: converging:: Concave lens:.

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  17. Object at 2F1: image at 2F2:: object at F1:.

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  18. Complete the analogy : Myopia: Concave lens:: Farsightedness:

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