Verified Solution • 2025–26 Session moderate

QNEET-2024-Ph-79: NEET 2024 Physics - Class 11 NEET-2024-Ph-79 Solution: In a vernier callipers (N+1) divisions of vernier scale…

In a vernier callipers (N+1) divisions of vernier scale coincide with N divisions of main scale. If 1 MSD represents 0.1 mm the vernier constant (in cm) is: 110N\frac{1}{10N} 1100(N+1)\frac{1}{100(N+1)} 1100N\frac{1}{100N} 110(N+1)\frac{1}{10(N+1)}

Multiple Choice Options

  • A 110 N\frac{1}{10 \mathrm{~N}} 10   N 1 _
  • B 1100(N+1)\frac{1}{100(N+1)} 100 ( N + 1 ) 1 _
  • C 00 N00 \mathrm{~N} 00   N
  • D 10(N+1)10(N+1) 10 ( N + 1 )

Step-by-Step Verified Solution

V.C = MSD _ VSD ..... (1) given : ( N + 1 ) VSD = N MSD VSD = ( N N + 1 ) MSD ..... (2) From (1) and (2) V . C = ( M S D ) _ N N + 1 ( M S D ) = M S D ( 1 _ N N + 1 ) = M S D N + 1 = 0.01 N + 1 = 1 100 ( N + 1 )

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