Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Physics Waves Wave Speed on a Stretched String
The wave velocity in a guitar string of length l and radius r, made of a material of density ρ, is v. If another string of same length and radius, but made of a material of density 3ρ, is used, the wave velocity is nv, under the same tension. The value of n is
1
0.58
2
1.00
3
1.73
4
More than one of the above
5
None of the above