Questions
Let and are the focal lengths of a convex lens for violet and red lights respectively. If and , are the focal lengths of a concave lens for violet and red light respectively then
detailed solution
Correct option is B
According to lens makers formula1f=μ−11R1+1R2⇒1f∝μ−1since μviolet⇒fvTalk to our academic expert!
Similar Questions
Image of the sun is formed by a binconvex lens of focal length f. The image is a circular patch of radius r and is formed on the focal plane of the lens. Choose the correct statement from the following
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