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Why convex lens has positive focal …

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Why convex lens has positive focal length?

Posted by Bhrakuti Singh 1 year, 1 month ago

CBSE > Class 10 > Science

4 answers

Arin Maheshwari 1 year, 1 month ago

The focal length of a convex lens is positive according to sign convention as the light rays converge on the opposite side from where the light ray is coming after passing through the lens.

Ved Gotiya 1 year, 1 month ago

Because if we make convex lens with Cartesian plane the focal length of convex lens it will come in the side of positive X-AXIS, so focal length will be positive.

Aman Kumar 1 year, 1 month ago

Because of Sign Covention

Rudra 💪🏻💪🏿 Raut 1 year, 1 month ago

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