In an experiment the angles are required to be measured using an instrument.29 divisions of the main scale exactly coincide with 30 divisions of vernier scale . It the smallest division of the main scale is half a degree 0.5degree then the least count of instrument is 1minute Half minute One degree. One degree

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Q. In an experiment the angles are required to be measured using an instrument. 29 divisions of the main scale exactly coincide with the 30 divisions of the vernier scale. If the smallest division of the main scale is half-a-degree

(= {0.5}^{o})

, then the least count of the instrument is:

Q. Vernier calipers has 20 divisions. Its vernier scale which coincide with 19 divisions on the main scale. Least count of the instrument is 0.1 mm. The main scale division is:

Q. In an instrument, 25 divisions of the vernier scale, coincide with 24 divisions of the main scale. One cm on main scale, is divided into 20 equal parts. The least count of the vernier scale is _____ cm.

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 corresponds to 0.5 degree. Total divisions on the vernier scale is 30 and match with 29 divisions of the main scale. The angle of prism from the above data is

Q. A spectrometer gives the following reading when used to measure the angle of a prism. Main scale reading: 58.5 degree, Vernier scale reading : 9 divisions. Given that 1 division on main scale corresponds 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:

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