wiz-icon
MyQuestionIcon
MyQuestionIcon
2
You visited us 2 times! Enjoying our articles? Unlock Full Access!
Question

A ship moving at a speed of 1 ms1, emits a sonar signal directed towards the seabed and receives the signal after it has travelled 2 m. Calculate the approximate depth of seabed if the speed of sound in seawater is 1500 ms1.

A
1000 m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
B
1500 m
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
C
2000 m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
D
2500 m
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct option is B 1500 m

Speed of ship = 1 ms1

Distance covered by ship between emitting and receiving the signal = 2 m

So, the time taken by the ship to cover 2 m = 2/1 = 2 s

In 2 seconds, the sonar signal was emitted from and received by the ship.

Speed of sound in seawater = 1500 ms1

So, in 2 seconds distance travelled by sound wave = 2 s×1500 ms1= 3000 m.
3000 m is the total distance travelled by the sonar wave.
Hence, the approximate depth of seabed = 3000 / 2 = 1500 m.


flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Reflection of Sound
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon