Published by:
CGP EDU Academic Team
Published on: August 23, 2026
The image of an object placed in air formed by a convex refracting surface is at a distance of 
behind the surface. The image is real and is at 
of the distance of the object from the surface. The wavelength of light inside the surface is 
times the wavelength in air. The radius of the curved surface is 
. the value of ' 
' is
Text Solution
Verified by ExpertsThe correct answer is:
30
(30) 
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