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Standard XII
Physics
Superposition and Interference
Question

Newton's rings are observed by keeping a spherical surface of $$100\ cm$$ radius on a plane glass plate. The wavelength of light used is $$5880\ \mathring{A}$$. If the diameter of the $$15th$$ bright ring is $$0.590\ cm$$, then diameter of the $$5th$$ ring is :

A
$$0.446\ cm$$
B
$$0.556\ cm$$
C
$$0.226\ cm$$
D
$$0.336\ cm$$
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Solution
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Correct option is C. $$0.336\ cm$$

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