the focal length of a thin lens in vaccum is f. If the material of the lens has μ= 3/2, its focal length when immersed in water of refractive index 4/3 will b
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The above image shows a thin lens with a focal length of 5m. What is the kind of lens shown in the above figure? If a real inverted image is to be
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The focal length of a thin lens made from the material of refractive index 1.5 is 20 cm. When it is placed in a liquid of refractive index 1.33, its focal length