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A person has a minimum distance of disti...

A person has a minimum distance of distinct vision as 50cm. The power of lenses required to read a book at a distance of 25cm is

A

3 D

B

1 D

C

2 D

D

4 D

Text Solution

Verified by Experts

The correct Answer is:
C
Using, `P=(1)/(f)`
We get, `P=2 D`
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-RAY OPTICS-EXERCISE 2 (MISCELLANEOUS PROBLEMS)
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  4. A person can see clearly objects only when they lie between 50 cm and ...

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  5. A astronomical telescope has objective and eyepiece of focal lenghts 4...

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  6. Match the corresponding entries of Column I with Column II . [Where, m...

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  7. Calculate the focal length of a reading glass of a person, if the dist...

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  8. A person wants a real image of his own, 3 times enlarged. Where should...

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  9. The magnification power of a convex lens of focal length 10cm, when th...

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  10. The velocity of image object and mirror both are moving towards each o...

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  11. A plano convex lens fits exactly into a plano concave lens. Their plan...

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  12. For a normal eye, the cornea of eye provides a converging power of 40 ...

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  13. When an object is placed 40cm from a diverging lens, its virtual image...

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  14. A magnifying glass of focal length 5cm is used to view an object by a ...

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  15. A person has a minimum distance of distinct vision as 50cm. The power ...

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  16. A concave mirrorr of focal length f(1) is placed at a distance of d fr...

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  17. The image formed by a convex mirror of focal length 30 cm. is a quarte...

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  18. In a compound microscope, the focal length of the objective and the ey...

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  19. A thin convex lens of refractive index 1.5cm has 20cm focal length in ...

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