Question

The length of the string of a simple pendulum is measured with a meter scale to be 92.0 cm, the radius of the bob plus the **** is measured with the help of vernier calliper to be 2.17 cm. Mark out the correct statement.

(a) Least count of meter scale is 0.1 cm

(b) Least count of vernier calliper is 0.01 cm

(c) Effective length of simple pendulum is 94.2 cm

(d) All of the above

Answer 1

The correct option is (c) Effective length of simple pendulum is 94.2 cm.

Explanation:

Effective length of the pendulum is (92.0 + 2.17) cm = 94.2 cm after rounding *** to 3 significant digits.