For finding the focal length of a convex lens by obtaining the image of a distant object, one should use as the object.

A well lit distant tree.

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Window grill in the class room.

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Any distant tree.

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A lighted candle kept at the other end of the table.

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Solution

The correct option is A
A well lit distant tree.

A well lit distant tree

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For finding the focal length of a convex lens by obtaining the image of a distant object, one should use as the object.

The correct option is A A well lit distant tree.A well lit distant tree

The correct option is A
A well lit distant tree.

A well lit distant tree