**Vibration MCQ**. We covered all the Vibration MCQ in this post for free so that you can practice well for the exam.

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**Questions**hide

## MCQ on Vibration for Students

## A particle is executing S.H.M., then the graph of velocity as a function of displacement will be

1. Circle

2. Rectangular

3. Ellipse

4. Straight

Option 3 – Ellipse

## At what phase, P.E. and K.E. are equal in the case of S.H.M.

1. 30°

2. 60°

3. 90°

4. 45°

Option 4 – 45°

## Calculate the speed of sound in gas in which two waves of wavelengths 1.00m and 0.01m produce 4 beats in one second.

1. 204 meter/sec

2. 301 meter/ sec

3. 404 meter/sec

4. 500 meter/sec

Option 3 – 404 meter/sec

## A simple pendulum of length 1m has an amplitude of 0.04m and an energy of 0.2 Joules. Calculate its energy when the length is double, but with the same amplitude.

1. 0.05 joules

2. 5 joules

3. 0.5 joules

4. 50 joules

Option 1 – 0.05 joules

## forks are arranged in the order of 16 tunings increasing frequency. Any two successes of forks give 1 beat per second. When sounded together if the last fork gives the octave of the first then determine the fre quency of the fork.

1. 20

2. 60

3. 240

4. 120

Option 4 – 120

## With increasing humidity, the velocity of sound in air is

1. increases

2. decreases

3. unchanged

4. fluctuates

Option 1 – increases

## If the length of the second’s pendulum is increased by 2%. How many seconds it will lose per day?

1. 864 sec

2. 3927 sec

3. 3429 sec

4. None of the above

Option 1 – 864 sec

## If the distance ‘X’ of a point moving on a straight line measured from a fixed origin on it and its velocity v are connected by the relation. 4v²=25-x². Show that the motion is simple harmonic and find its period.

1. 4 sec

2. 6 sec

3. 12 sec

4. 1 sec

Option 1 – 4 sec

We covered all the vibration mcq above in this post for free so that you can practice well for the exam.

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