Question

1. Draw a labelled diagram showing rainbow formation. (1)
2. Find the focal length of a spherical mirror whose radius of curvature is +24cm. (1)
3. You are provided with two lenses of focal length 50 cm and 100 cm respectively. Which lens will you use to
obtain more convergent light?
PLS HELP!!

Answer 1

Answer:

1)for rainbow formation I am attaching my refrence pic draw it.

2) R=2f

+24=2f

+12= f

3) More the power of a lens , more is its converging power. Thus , the lens of shorter focal length will have more converging power. Hence 50 cm is the correct answer.

Explanation:

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