## OTS Physics Mcqs Online Test 9 Preparation Question Answers Start Below

```
``` S.I unit of frequency is?

vibration S-2 .

radian

hertz

ms-1

### Correct!

### Wrong!

In vibratory motion?

P.E. remains constant

K.E. remain constant

total energy remain constant

total momentum remain constant

### Correct!

### Wrong!

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

square root of amplitude

the amplitude .

reciprocal of amplitude

square of amplitude

### Correct!

### Wrong!

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

four times

six times

eight times

two times

### Correct!

### Wrong!

The time period of a second pendulum is?

4 seconds

3 seconds .

2 seconds

6 seconds

### Correct!

### Wrong!

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

mg cos?

mg sin?

mg ton?

mg

### Correct!

### Wrong!

The length of second pendulum is?

. 100 cm .

99 cm .

99.2 cm

98 cm

### Correct!

### Wrong!

In S.H.M. the velocity of a particle is maximum at?

mean position

extreme position

middle between mean and extreme position on the right side

middle between mean and extreme position on the left side

### Correct!

### Wrong!

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

. w2x

wx2

w2x .

wx2

### Correct!

### Wrong!

The waveform of S.H.M. is?

standing wave

. sine wave

square wave

. none

### Correct!

### Wrong!

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