Question

of frequency 40000 Hz is sent vertically into sea water. The signal gets
oft from the ocean bed and returns to the surface 0.9 second aner it was emited. In the
speed of sound in sea water is 1480 m/s then find the depth of the sea
(A) 1332 m
(B) 666 m
(C) 444.4 m
(D) 333.33 m​

Answer 1

Answer:

c)I think this one is correct option

Answer 2

Answer:

a . 666

Explanation:

when the sound is produced

frequency =40000hz

there is not any use of it

we know that in both going and coming is sound so formula used is

2d = v× t

2d= 1480× 9/10

d= (148×9)/2

d= 666