Question

a pendulum 100 cm another pendulum 4 cm long are oscillating at the same time the ratio of
their time period is

Answer 1

Answer:

5:1

Explanation:

Time period= √length

t= √100/4

t= 10/2

Therefore ratio of time period is 5:1

Answer 2

Answer:

The answer of their ration is 5 : 1

Explanation:

Given :

$l_{1}$  = 100 cm;

$l_{2}$ = 4 cm;

Let $t_{1}$ and $t_{2}$ be the time period of two pendulum

$\frac{t_{1} }{t_{2} } = \sqrt{\frac{l_{1} }{l_{2} } }$

$\frac{t_{1} }{t_{2} } = \sqrt{\frac{100}{4} }$

$\frac{t_{1} }{t_{2} } = \sqrt{\frac{25}{1} }$

$\frac{t_{1} }{t_{2} } = \frac{5}{1}$

= 5 : 1