Math, asked by shivasai955, 1 month ago

what is the focal length of double concave lens kept in air with two spherical surface of radio R1 =30cm R2=60cm and refractive index of glass is n=1.5​

Answers

Answered by kbhavesh2007
0

Answer:

Therefore, the focal length of the given double concave lens is equal to 40cm. It is important to note that the lens maker's formula follows sign convention.

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