Question

Raju did some preliminary experiment with the lenses and found that the magnification of the eyepiece (L2 ) is 3.If in his experiment with L2 he found the image at 24 cm from the lens, at what distance did he put the object? *​

Answer 1

Explanation:

Here d=

d

1

d

2

=

(0.3)(1.2)

mm=0.6mm

Width of ten fringes =9.72 mm

Hence width of each fringe=0.972 mm=

d

Dλ

Hence λ=

D

d(0.972)

mm=5832A

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