Question

We can change the time period of a pendulum
(a) by changing the mass of the bob
(b) by changing the length of the string
(c) by changing both the bob and the length of the pendulum
(d) None of these​

Answer 1

Answer:

Answer is option C

Explanation:

(c) by changing both the bob and the length of the pendulum

Answer 2

Answer:

(b)

Explanation:

by changing the length of the string