Total Internal reflection is not possible when ray of light travels from |
|||||||
(a) |
glass of water |
(b) |
glass to air |
(c) |
water to air |
(d) |
water to glass |
Total Internal reflection is not possible when ray of light travels from |
|||||||
(a) |
glass of water |
(b) |
glass to air |
(c) |
water to air |
(d) |
water to glass |
The compound microscope consists of two convex lenses of 5 cm and 20 cm focal length, then which of them will be object lens and eye piece ? |
|||
(a) |
Object lens with 20 cm focal length and eye piece with 5 cm focal length. |
(b) |
Object lens with 5 cm focal length and eye piece with 20 cm focal length. |
(c) |
Both should have 20 cm focal length. |
(d) |
Both should have 5 cm focal length. |
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