Arrange the following steps in sequential order to find the depth of the ocean bed using Sonar.
(A) The time taken (t) to receive the sound is measured.
(B) Ultrasonic sound is sent to the ocean bed whose depth (d) is to be found from the transmitter attached to the ship.
(C) If 'v' is the velocity of sound in water, the depth can be found using, v = 2d/t.
(D) The ultrasonic sound reflected form the ocean bed is received by a suitable detector in the ship.

Options

A. ABCD
B. ADCB
C. BADC
D. BDAC

Answer

D

Explanation

Ultrasonic sound is sent to the ocean bed whose depth (d) is to be found from the transmitter attached to the ship.
(ii) The ultrasonic sound reflected from the ocean bed is received by a suitable detector in the ship.
(iii) The time taken (t) to receive the sound is measured.
(iv) If 'v' is the velocity of sound in water, the depth can be found using, `v = (2d)/(t)`.