Question
To determine the focal length of a convex lens by obtaining a sharp image of a distant object we generally follow the following steps which are not in proper sequence.
(a) Hold the lens between the object and the screen
(b) Measure the distance between the lens and the screen
(c) Select a well-lit distant object
(d) Place a screen opposite to the object on the lab table
(e) Adjust the position of the lens to form a sharp image
The correct sequence of these steps is:
-
c, a, d, e, b
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c, d, a, e, b
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c, d, e, a, b
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c, a, e, d, b
Solution
B.
c, d, a, e, b
The right sequence of steps is c,d,a,e,b.
