If half part of a convex lens is covered, the focal length _ and the intensity of image .

changes, remains same

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does not change, remains same

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does not change, decreases

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changes, decreases

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Solution

The correct option is C
does not change, decreases

If half part of a convex lens is covered, the focal length does not change and the intensity of image decreases.

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Similar questions

If half the portion of a convex lens is covered, the focal length ..................... change, but intensity of image..................

Complete the following sentences :

(a) If half of a convex lens is covered, the focal length ..................... change, but the intersity of image ......................

(b) A convex lens is placed in water. Its focal length will ..................

f

d

I

(\frac{d}{2})

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