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in Physics by (52.3k points)

In a Fresnel biprism experiment, the two positions of lens give separation between the slits as 16 cm and 9 cm respectively. What is the actual distance of separation?
(A) 12.5cm
(B) 12cm
(C) 13cm
(D) 14cm

1 Answer

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Best answer

The answer is (B) 12cm

The actual distance of separation between the slits,

d = \(\sqrt{d_1d_2}\) = \(\sqrt{16\times 9}\) = 12 cm

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