Failed to connect to MySQL: Access denied for user 'examnext_online'@'localhost' (using password: YES) A concave lens of focal length 40 cm is in contact with a concave lens of focal length 25 cm. The power of the combination is - Sarthaks eConnect
menu
search
Ask Question

Welcome to Sarthaks eConnect Question Bank

Practice Online Test Series for JEE Main 2018 & NEET 2018

A concave lens of focal length 40 cm is in contact with a concave lens of focal length 25 cm. The power of the combination is

A concave lens of focal length 40 cm is in contact with a concave lens of focal length 25 cm. The power of the combination is

A.

-1.5D
B.

-6.5D

C.

+6.5D

D.

+6.67D

Powered by Sarthaks eConnect
Powered by Sarthaks eConnect