Parallel rays of light are focussed by a thin convex lens. A thin concave lens of same…
Physics · JEE Main · NTA Exams — Optics
Parallel rays of light are focussed by a thin convex lens. A thin concave lens of same focal length is then joined to the convex lens and the result is that
- the focal point shifts away from the lens by a small distance
- the focal point shifts towards the lens by a small distance
- the focal point does not shift at all
- the focal point shifts to infinity
Answer
(D) the focal point shifts to infinity
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