Question

When the tenshion decreases by 0.11kg.wt the no of loop changes from 5 to 6 then what is initial tenshion

Answer 1

Answer:

Explanation:

When a string of linear density 'm', under tension 'T', vibrates in 'n' loops, the frequency,  

2l

n

​  

 

m

T

​  

 

​  

=N

Tn  

2

=4l  

2

N  

2

m=constant

T  

1

​  

n  

1

2

​  

=T  

2

​  

n  

2

2

​  

⇒T  

2

​  

=  

n  

2

1

​  

 

n  

1

2

​  

 

​  

×T  

1

​  

=  

10  

2

 

5  

2

 

​  

×10=2.5gm