A man who cannot see clearly beyond 5 m wants to see stars clearly. He should use a lens of focal length

[MP PET/PMT 1988; Pb. PET 2003]

- 100 m

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+ 5 m

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- 5 m

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Very large

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Solution

The correct option is C
- 5 m

Far point of the myopic eye is the focal length. So, according to sign convention, f= -5 cm.

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[MP PET/PMT 1988; Pb. PET 2003]

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