The refractive index of glass with respect to air is 1.53 and that of water with respect to air is 1.33. Then a convex lens whose focal length in air is 20 cm, when fully immersed in water would have the focal length
(a)
20 cm
(b)
3.9 cm
(c)
70.49 cm
(d)
The refractive index of glass with respect to air is 1.53 and that of water with respect to air is 1.33. Then a convex lens whose focal length in air is 20 cm, when fully immersed in water would have the focal length
(a)
20 cm
(b)
3.9 cm
(c)
70.49 cm
(d)
Question ID - 102266 | SaraNextGen Top Answer
The refractive index of glass with respect to air is 1.53 and that of water with respect to air is 1.33. Then a convex lens whose focal length in air is 20 cm, when fully immersed in water would have the focal length
(a)
20 cm
(b)
3.9 cm
(c)
70.49 cm
(d)
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The refractive index of glass with respect to air is 1.53 and that of water with respect to air is 1.33. Then a convex lens whose focal length in air is 20 cm, when fully immersed in water would have the focal length |
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(a) |
20 cm |
(b) |
3.9 cm |
(c) |
70.49 cm |
(d) |
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