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A spectrometer gives the following readi...

A spectrometer gives the following reading when used to measure the angle of a prism.
Main scale reading : `58.5 degree`
Vernier scale reading : `09` divisions
Given that `1` division on main scale correspods to `0.5` degree. Total divisions on the vernier scale is `30` and match with `29` divisions of the main scale. the angle of the prism from the above data:

A

58.65 degree

B

59 degree

C

58.59 degre

D

58.77 degree

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The correct Answer is:
A
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