Write four steps in proper sequence which should be followed in the determination of focal length of a given convex lens by obtaining a sharp image of a distant object.
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Answers
Answer:
(A) Measure the distance between the lens and screen. (B) Adjust the position of the lens to form a sharp image. (C) Select a suitable distant object. (D) Hold the lens between the object and the screen with its faces parallel to the screen.
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Answer:
Sequence -
(1) Select a well - lit distant object
(2) Hold the lens between object and screen with is faces parallel to the screen.
(3) Adjust the position of lens to form a sharp image.
(4) Measure the distance between the lens and the screen it will be the focal length of convex lens.
Explanation:
Sequence -
(1) Select a well - lit distant object
(2) Hold the lens between object and screen with is faces parallel to the screen.
(3) Adjust the position of lens to form a sharp image.
(4) Measure the distance between the lens and the screen it will be the focal length of convex lens.