Question

The velocity of ultrasonic sound in water is 1400 m. The depth of the ocean as detected by SONAR, if the time taken to receive the reflected wave is 15s, is what??​

Answer 1

Answer:

10,500 metres

Explanation:

Correction:

Velocity of ultrasound is 1400 m/s

Given :

• Velocity of ultrasonic sound in water = 1400 m/s

• Time taken for the ultrasound to travel back = 15 seconds

To find :

• Depth of the ocean

Velocity = 2d/t (2d as the ultrasound has to go and travel back again)

1400 = 2d/15

2d = 1400×15

2d = 21,000

d = 21,000/2

d = 10,500 metres

The depth of the ocean is equal to 10,500 metres

Answer 2

Given :-

• Velocity (v) of ultrasound sound =1400m/s

• Time (t) taken to reflect wave=15s

To Find:-

• Depth (d) of Ocean .

Solution :-

By using this Formula

➦ 2d=vt

➭ 2d = 1400×15

➭ d = 1400×15/2

➭ d = 10500m

∴ The depth of ocean is 10500m.

Extra Information!!!!!!!

☛ Sonar stands for sonographic navigation ranging. This is a method for detecting and finding the distance of object under water by means of reflected waves. The device used in this method is called Sonar.