Question

1.The main scale reading is 8 cm and vernier coincidence is 4 and negative zero error is 0.02 cm.
Calculate the correct reading.

Answer 1

Answer:

8.02cm is your answer

Explanation:

MSD=8cm,VSD=p*LC,4*.01=0.04, observed reading=8+.04=8.04,8.04-negative error

PLS MARK ME BRAINLIEST

Answer 2

Answer:

Here, thickness of the rubber ball = diameter of the ball.

Main scale reading = 7 cm

Vernier scale reading = 6

Least count = 0.01 cm

Assuming, there is no zero error

Diameter of the ball =

Main scale reading (MSR) +

(Vernier scale coincidence (VC) × least count (LC)) ± ZE

= 7 + (6 × 0.01) ± 0

= 7.06 cm

Radius of ball

= 3.53 cm

Hence, radius of the ball is 3.53 cm.