MCQ
When the observer moves towards the stationary source with velocity, $V_1$, the apparent frequency of the emitted note is $F_1$. When the observer moves away from the source with velocity $V_1$, the apparent frequency is $F_2$. If 'V' is the velocity of sound in air and $F_1/F_2$ = 4 then $V/V_1$ = ?
- ✓`5/3`
- B5
- C2
- D`3/5`