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An optical device is constructed by fixing 3 identical convex lenses of focal lengths 10cm each inside a hollow tube at equal spacing of 30cm each. One end of the device is placed 10cm away from a point source. How much does the img shift when the device is moved away from the source by another 10cm?A)0B) 5cmC) 15cmD) 45cm

An optical device is constructed by fixing 3 identical convex lenses of focal lengths 10cm each inside a hollow tube at equal spacing of 30cm each. One end of the device is placed 10cm away from a point source. How much does the img shift when the device is moved away from the source by another 10cm?A)0B) 5cmC) 15cmD) 45cm

Grade:12

1 Answers

Rituraj Tiwari
askIITians Faculty 1792 Points
3 years ago
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