Q. A convex lens of power P is immersed in a water. How will its power change ?
A. Increases
B. Remain unchanged
C. Decreases
D. Increases for red colour and decreases for blue colour
Answer: Decreases
A. Increases
B. Remain unchanged
C. Decreases
D. Increases for red colour and decreases for blue colour
Answer: Decreases
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