menu search
brightness_auto
Feel free to answer or ask any questions.
If you are new here please see how to use or FAQ.
more_vert

Two identical strings X and Z made of same material have tension TX and TZ in then If their fundamental frequencies are 450 Hz and 300 Hz, respectively, then the ratio TX/TZ is : 

(1) 1.25 

(2) 0.44 

(3) 1.4 

(4) 2.25

thumb_up_off_alt 3 like thumb_down_off_alt 0 dislike
more_vert
Chapter simple harmonic motion (SHM)

1 Answer

more_vert
 
verified
Best answer

Ans. (4) 2.25

Sol. $f_x={1\over2l}\sqrt{T_x\over\mu}$

$f_z={1\over2l}\sqrt{T_z\over\mu}$

${f_x\over f_z}={450\over300}=\sqrt{T_x\over T_z}$

$\implies T_x/T_z = 9/4 = 2.25$

thumb_up_off_alt 2 like thumb_down_off_alt 0 dislike
more_vert
it should be 9/6 na...as 50*6=300
Welcome to Jee Neet QnA, where you can ask questions and receive answers from other members of the community.

1.1k questions

772 answers

366 comments

79 users

...