Question

The pendulum, in a wall clock, is a 'seconds pendulum', i.e., has a time period of 2s. The

'effective length' of a simple pendulum, that has the same time period, is nearly:
A)150 cm

B)200 cm

C)50 cm

D)100 cm​

Answer 1

Answer:

100 cm

Explanation:

wish you a many many happy returns of the day

Answer 2

Given: The pendulum in a wall clock has rime period 2 seconds.

To find: The effective length of simple pendulum that has same time period

Explanation: The formula for calculating the time period(t) of a simple pendulum is given by the formula:

$t = 2\pi \sqrt{ \frac{length}{g} }$

where g is Acceleration due to gravity= 10 m/s^2

=> t^2 = 4π^2* length / g

=> 4 = 4* (3.14)^2 * length/10 (t= 2 s)

=> 4 = 4*9.86* length/10

=> 40= 39.44* length

=> length= 40/39.44

= 1 m

= 100 cm

Therefore, the effective length of a simple pendulum whose time period is 2 seconds is 100 cm.