Home
Class 7
PHYSICS
Three persons P(1), P(2), and P(3) are a...

Three persons `P_(1), P_(2)`, and `P_(3)` are at three different points A, B and C as shown in the figure. `P_(1)` and `P_(2)` clap at the same time. For `P_(3)` to hear two distinct claps, the minimum distance between `P_(1)` and `P_(2)` should be _______ m. (The velocity of sound in air is `330 ms^(-1)`)

A

33

B

330

C

36.3

D

660

Text Solution

Verified by Experts

The correct Answer is:
A
Human ear can hear two sounds separately only if they reach the ear after an interval of (1/10) of a second. So, the time taken by the sound from `P_1 `to `P_2` should be greater than (1/10) s = 0.1 s. The minimum distance between `P_1` and `P_2 = v xx 1 = 330 xx 0.1 = 33 m`.
Promotional Banner

Topper's Solved these Questions

  • SOUND

    PEARSON IIT JEE FOUNDATION|Exercise ASSESSMENT TESTS (TEST -2)|14 Videos

  • SOUND

    PEARSON IIT JEE FOUNDATION|Exercise CONCEPT APPLICATION (LEVEL-3)|5 Videos

  • OUR UNIVERSE

    PEARSON IIT JEE FOUNDATION|Exercise ASSESSMENT TEST (TEST 2)|14 Videos

Similar Questions

Explore conceptually related problems

Three persons P_(1), P_(2) and P_(3) are at different points A, B and C, as shown in the figure. P_(1) and P_(2) clap at the same time. For P_(3) to hear two distinct claps, the minimum distance betweenl P_(1) and P_(2) should be ______ m. (The velocity of sound in air is 330 ms^(-1) )

Three persons P_(1), P_(2) and P_(3) are at different points A, B and C, respectively as shown in the figure. Two persons P_(1) and P_(3) clap at the same time. Which among the following can be the minimum distance between P_(2) and P_(3) to hear the clap sound distinctly by P_(2) ? (Take the velocity of sound in air as 330 ms^(-1) )

P_(1),P_(2),P_(3),are:

The phase of a particle at P_(1) " is " 60^(@) and the phase of a particle at P_(2) " is " 780^(@) . If the distance between P_(1) and P_(2) is 1m, then the wavelength of the wave, will be

Three identical conducting plates P_(1),P_(2) and P_(3) are kept at a distance d from each other. If q,-q,2q are the charges in P_(1),P_(2) and P_(3) respectively, the electric field between P_(1) and P_(2) is (where A is area of plate)

P_(1) : x + 3y - z = 0 and P_(2) : y + 2z = 0 are two intersecting planes P_(3) is a plane passing through the point (2,1,-1) and through the line of intersection of P_(1) and P_(2) The angle between P_(1) and P_(2) is ________.

If p_(1),p_(2),p_(3) are altitudes of a triangle ABC from the vertices A,B,C and ! the area of the triangle, then p_(1).p_(2),p_(3) is equal to