Arrange the following steps to determine the focal length of a convex lens in proper order.
(A) Focus the lens to a distant object.
(B) Measure the distance between the lens and the screen.
(C) Place the lens on a stand.
(D) Adjust the position of the screen to obtain a clear image on it.

CABD

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CBAD

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CADB

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CBDA

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Solution

The correct option is C
CADB

Aim of the experiment:
To find the focal length of a convex lens.
Material required:
Convex lens, an object, Scale, Screen.
Procedure:
The first step is to place the lens on a stand.
Then focus it on the object
Now we will measure the distance between the lens and screen $u$
Then adjust the position of the screen and measure its distance from the screen $v$
So, the correct option is (C) CADB.

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Arrange the following steps to determine the focal length of a convex lens in proper order.(A) Focus the lens to a distant object.(B) Measure the distance between the lens and the screen.(C) Place the lens on a stand.(D) Adjust the position of the screen to obtain a clear image on it.

Arrange the following steps to determine the focal length of a convex lens in proper order.
(A) Focus the lens to a distant object.
(B) Measure the distance between the lens and the screen.
(C) Place the lens on a stand.
(D) Adjust the position of the screen to obtain a clear image on it.