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  • The varnier scale used for measurement  has a positive zero error of 2.0 mm. If while taking a measurement it was noted that '0' on the vernier scale lies between 8.5 cm and 8.6 cm, vernier coincidence is 6, then the correct value of measu

The varnier scale used for measurement  has a positive zero error of 2.0 mm. If while taking a measurement it was noted that '0' on the vernier scale lies between 8.5 cm and 8.6 cm, vernier coincidence is 6, then the correct value of measurement is _______ cm. (least count = 0.01 cm)  
Option: 1 8.56 cm
 
Option: 2 8.54 cm
Option: 3 8.58 cm  
Option: 4 8.36 cm

Answers (1)

best_answer

Positive zero error =0.2 mm

Main scale reading =8.5 cm

Vernier scale reading =6 \times 0.01=0.06 \mathrm{~cm}

Final reading =8.5+0.06-0.02=8.54 cm

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avinash.dongre

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