Question

A seconds' pendulum is taken to a place where acceleration due to gravity falls to one-fourth. How is the time period of the pendulum affected, if at all? Give reason. What will be its new time period? 

Answer 1

Time period of a pendulum is inversely proportional to the square root of acceration due to gravity.

T α 1/√g

given that gravity falls to one-fourth.
g' = g/4
let original time period = T
final time period = T'

$\frac{T'}{T} = \sqrt{ \frac{g}{g'} } \\ \\ T'=T \sqrt{ \frac{g}{g'} } \\ \\ T'=T \sqrt{ \frac{g}{g/4} } \\ \\ T'=T \sqrt{4} =2T$

So the time period becomes 2 times the original time period.

Time period of a seconds' pendulum = 2s
New Time period = 2×2s = 4s

Answer 2

I hope it will help you

please make me as the brainliest answer

thanks