Questions
The two lenses shown are illuminated by a beam of parallel rays of light from left. Lens B is then moved slowly towards lens A. The beam emerging from lens B is,
detailed solution
Correct option is C
Initially the incident beam will converge at a distance of 50 cm to the right of A. So for the lens, u= +25cm, f= -25cm.∴ 1v−1+25 = 1−25⇒ V = ∞So the final emergent rays are parallel.Talk to our academic expert!
Similar Questions
Image of the sun is formed by a binconvex lens of focal length f. The image is a circular patch of radius r and is formed on the focal plane of the lens. Choose the correct statement from the following
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