The vernier scale used for measurement has a positive zero error of 0.2 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 )

Question

The vernier scale used for measurement has a positive zero error of 0.2 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 ) (A) 8.36 cm (B) 8.54 cm (C) 8.58 cm (D) 8.56 cm

Tardigrade Admin · Accepted Answer

Positive zero error =0.2 mm Main scale reading =8.5 cm Vemier scale reading =6 × 0.01=0.06 cm Final reading =8.5+0.06-0.02=8.54 cm

$8.36 c m$

$8.54 c m$

$8.58 c m$

$8.56 c m$

Positive zero error $= 0.2 mm$
Main scale reading $= 8.5 c m$
Vemier scale reading $= 6 \times 0.01 = 0.06 c m$
Final reading $= 8.5 + 0.06 - 0.02 = 8.54 c m$

Q. The vernier scale used for measurement has a positive zero error of 0.2mm. If while taking a measurement it was noted that ′0′ on the vernier scale lies between 8.5cm and 8.6cm, vernier coincidence is 6 , then the correct value of measurement is cm. (least count =0.01cm)

8.36cm

8.54cm

8.58cm

8.56cm

Positive zero error =0.2mm Main scale reading =8.5cm Vemier scale reading =6×0.01=0.06cm Final reading =8.5+0.06−0.02=8.54cm

$8.36 c m$

$8.54 c m$

$8.58 c m$

$8.56 c m$

Positive zero error $= 0.2 mm$
Main scale reading $= 8.5 c m$
Vemier scale reading $= 6 \times 0.01 = 0.06 c m$
Final reading $= 8.5 + 0.06 - 0.02 = 8.54 c m$