Physics - Mock Test 42

Question 411

When the amplitude of a wave become double its energy become?

A) double B) four times C) one half D) none time

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Question 412

The SI unit of force constant is identical with that of?

A) force B) pressure C) surface tension D) loudness

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Question 413

Simple harmonic motion is a type of?

A) rotational motion B) circular motion C) musical arrangement D) vibratory motion

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Question 414

The frequency of the second pendulum is?

A) 1 hertz B) 0.5 hertz C) 1.5 hertz D) 2.5 hertz

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Question 415

The force responsible for the vibratory motion of the simple pendulum is?

A) mg sec (theta) B) mg sin (theta) C) mg cos(theta) D) mg tan (theta)

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Question 416

If length of second pendulum becomes four times, then its time period will become?

A) four times B) six times C) eight times D) two times

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Question 417

The length of second pendulum is?

A) 100 cm B) 99 cm C) 99.2 cm D) 98 cm

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Question 418

The time period of a second pendulum is?

A) 4 seconds B) 3 seconds C) 2 seconds D) 6 seconds

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Question 419

Total energy of a body executing S.H.M is directly proportional to?

A) square root of amplitude B) the amplitude C) reciprocal of amplitude D) square of amplitude

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Question 420

The acceleration of a projection on the diameter for a particle moving along a circle is?

A) w2x B) wx2 C) w2x D) wx2

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