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both spherical mirror and a thin concave lens have focal length of (-15)cm.what mirror and lens are there?

Posted by Al-Jenefer Ansari 5 years ago

CBSE > Class 10 > Science

4 answers

Mayank Rauthan 5 years ago

Both are concave mirror and lens

Akanksha Shukla 5 years ago

The focal length of concave mirror are always negative.

Harsh Raj 5 years ago

Concave

Gaurav Seth 5 years ago

ANSWER

By convention, the focal length of a concave mirror and a concave lens are taken as negative. Hence, both the spherical mirror and the thin spherical lens are concave in nature.

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