Physics, asked by talhashahzad3811, 1 month ago

length, Time period of a simple pendulum of is T. What will be the time period, if length of the pendulum is '21'?​

Answers

Answered by kimtaehyung21
1

Explanation:

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Answered by ronalshoey
2

We know that,

The time period is

T  

1

=2π  

g

l

 

 

Now, length is increased by 21%

So, new length is

l=l+l  

100

21

=  

100

121l

 

Now put the value of l in equation (I)

 T  

2

=2π  

g

100

121l

 

 

 

T  

2

=2π  

100g

121l

 

 

T  

2

=  

10

11

×2π  

g

l

 

 

T  

2

=  

10

11

T  

1

 

Now, change in time period is

 ΔT=T  

2

−T  

1

 

ΔT=  

10

11

T  

1

−T  

1

 

ΔT=  

10

1

T  

1

 

Now,

Percentage change

 =  

T

ΔT

×100

=  

T  

1

 

10

T  

1

 

 

×100

=10 %  

Hence, this is the required solution

 

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