In an experiment on determining the velocity of a pulse propagating through a stretched string- the stopwatch should be started and stoped at instants corresponding to the ones shown in-1 Fig- 1 and Fig- 22 Fig- 1 and Fig- 33 Fig- 2 and Fig- 14 Fig- 2 and Fig- 3

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Wave Equation

In an experim...

Question

In an experiment on determining the velocity of a pulse propagating through a stretched string, the stopwatch should be started and stopped at instants corresponding to the ones shown in :

(1) Fig. 1 and Fig. 2
(2) Fig. 1 and Fig. 3
(3) Fig. 2 and Fig. 1
(4) Fig. 2 and Fig. 3

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Solution

As given in the figure, a wave pulse starts traveling from end A towards the end B. To calculate the velocity of the given wave, the stopwatch should be started at the instant corresponding to the figure A and should be stopped at the instant when the pulse reaches the other end, which corresponds to the figure 3. By dividing the distance travelled by the pulse from end A to end B with the time reading obtained by the stopwatch, we can easily determine the velocity of the given wave.

Hence, the correct answer is option 2.

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In an experiment on determining the velocity of a pulse propagating through a stretched string, the stopwatch should be started and stopped at instants corresponding to the ones shown in : (1) Fig. 1 and Fig. 2 (2) Fig. 1 and Fig. 3 (3) Fig. 2 and Fig. 1 (4) Fig. 2 and Fig. 3

In an experiment on determining the velocity of a pulse propagating through a stretched string, the stopwatch should be started and stopped at instants corresponding to the ones shown in :

(1) Fig. 1 and Fig. 2
(2) Fig. 1 and Fig. 3
(3) Fig. 2 and Fig. 1
(4) Fig. 2 and Fig. 3