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Question

The lens of a camera has a focal length of 15 cm. Calculate the distance between the lens and the film in order

to photograph objects at infinity from the lens.


A) 15 mm


B) 15 m


C) 15 cm


D) This is not possible.


Jane has hyperopia. The nearpoint of his right eye is 150 cm. What lens will restore the vision in his right eye?


A) 4 D


B) 0.67 D


C) 3.3 D


D) 4.7 D

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New Doc 2019-09-23 19.59.10.jpg

The Condition for Image forming.
Do, film must be at focus to, distance
between film and lens is also 15 cm
Aris
Do, option'c' is Correct.
2) In Hypermetropia person is not able
to see things which...

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