I've tried several times to shout when I'm inside the pool but have failed to make any sound. Nor am I able to hear anyone talking outside. Why does this happen?
The frequency does not change and sound travels faster in water than in air. Partial reflection should take place. So when sound travels from outside, it should reach my ears and I should be make out if someone is talking outside the pool, right?
And when I'm shouting , often water fills up my mouth (which should be due to the pressure of water ) but if it didn't, would my shouts reach outside?