Question

6. Newton's rings are formed between two biconvex lenses of equal radii of curvature by reflected light
of wavelength 5000 A. If the distance between the 5th and the 15th dark rings is 0.085 cm. what is the
radius of either lens?
(a) 109.7 cm
(b) 71.29 cm
(c) 107.9 cm
(d) 75.6 cm
(e) 105.4 cm​

Answer 1

Answer:

b

Explanation:

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Answer 2

Answer:

answer c correct for biconvex lens use thickness