MCQ
When we hear a sound, we can identify its source from
- AAmplitude of sound
- BIntensity of sound
- CWavelength of sound
- ✓Overtones present in the sound
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$(I)$ $P$ runs with speed $1 \,ms ^{-1}$ towards $Q$, while $Q$ remains stationary.
$(II)$ $Q$ runs with speed $1 \,ms ^{-1}$ towards $P$, while $P$ remains stationary.
Note That irrespective of speed of $P$, ball always leaves $P$ s hand with speed $2 \,ms ^{-1}$ with respect to the ground. Ignore gravity. Balls will be received by $Q$.