A convex lens of focal length f produces a real image of size m times the size of the object. Then the object distance is |
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(a) |
f |
(b) |
(m+1)f |
(c) |
(d) |
_{ } |
A convex lens of focal length f produces a real image of size m times the size of the object. Then the object distance is |
|||||||
(a) |
f |
(b) |
(m+1)f |
(c) |
(d) |
_{ } |
The absolute refractive index of a medium is 1.5. Then what would be the velocity of light in this medium ? |
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(a) |
2 x 10^{8} m/s |
(b) |
1.5 x 10^{8} m/s |
(c) |
3.5 x 10^{8} m/s |
(d) |
2.5 x 10^{8} m/s_{ } |
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