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PhysicsErrorMiscellaneousEasy2 minPYQ_2016
PhysicsEasysingle choice

There are two vernier calipers both of which have 1 cm divided into 10 equal divisions on the main scale. The Vernier scale of one of the calipers C1 has 10 equal divisions that correspond to 9 main scale divisions. The Vernier scale of the other caliper C2 has 10 equal divisions that correspond to 11 main scale divisions. The readings of the two calipers are shown in the figure. The measured values (in cm) by calipers C1 and C2 respectively, are

Question diagram: There are two vernier calipers both of which have 1 cm divid

Options:

Answer:
C
Solution:

For caliper C1

10 VSD=9 MSD

LC=1 MSD-1 VSD

LC=0.01 cm

Measured value=Main scale reading+vernier scale reading×least count

=2.8+7×0.01 cm

=2.87 cm

For caliper C2

10 VSD=11 MSD

LC=-0.01 cm (Negative least count means we have to take VSR from the right of the scale 107)

Measured value =2.8+10-7×0.01 cm

=2.83 cm

Stream:JEE_ADVSubject:PhysicsTopic:ErrorSubtopic:Miscellaneous
2mℹ️ Source: PYQ_2016

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