A) increases by a factor 20
B) increases by a factor 10
C) decreases by a factor 20
D) decreases by a factor 10
Correct Answer: B
Solution :
| Velocity of sound \[v=n\lambda \] |
| \[\frac{{{v}_{1}}}{{{v}_{2}}}=\frac{{{n}_{1}}{{\lambda }_{1}}}{{{n}_{2}}{{\lambda }_{2}}}\] \[(\text{but}\,{{n}_{1}}={{n}_{2}})\] |
| \[{{\lambda }_{2}}={{\lambda }_{1}}\frac{{{v}_{2}}}{{{v}_{1}}}={{\lambda }_{1}}\times 10\] |
| \[{{\lambda }_{2}}=10\,{{\lambda }_{1}}\] |
You need to login to perform this action.
You will be redirected in
3 sec
