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Physics · PYQ NEET UG 2024
हिन्दीIn a vernier calipers, \( (N + 1) \) divisions of vernier scale coincide with \( N \) divisions of main scale. If 1 MSD represents \( 0.1 \text{ mm} \), the vernier constant (in cm) is :
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Correct answer · Option D
\( \frac{1}{100(N+1)} \)
Explanation
\( 1 \text{ VSD} = \frac{N}{N+1} \text{ MSD} \). Vernier constant \( VC = 1 \text{ MSD} - 1 \text{ VSD} = \frac{1 \text{ MSD}}{N+1} \). Since \( 1 \text{ MSD} = 0.1 \text{ mm} = 0.01 \text{ cm} = \frac{1}{100} \text{ cm} \), \( VC = \frac{1}{100(N+1)} \text{ cm} \).
