# Physics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 152 - 157 of 285

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## Question 152

Edit

### Question

MCQ▾

If inertia of object is more than inertia of object , then which one has more mass?

### Choices

Choice (4)Response

a.

Object B

b.

Object A

c.

Can’t be decide by given data

d.

Object A and Object B have same mass

## Question 153

Edit

### Question

MCQ▾

An object of mass is travelling with velocity collides with an object of mass , which is initially at rest. If both the objects are stuck after collision, then the velocity of the combination is:

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 154

Physics
Edit

### Question

MCQ▾

Which of the following is frequency of an ultrasonic wave?

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 155

Physics
Edit

### Question

MCQ▾

If a submarine sends out a signal and receives an echo in by a sonar device, then calculate the speed of sound in water if the distance of the submarine is .

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question 156

Edit

### Question

MCQ▾

A body is of weights on the surface of the earth. What is the gravitational force on it due to the earth at a height equal to of radius of the earth?

### Choices

Choice (4)Response

a.

b.

c.

d.

### Passage

A boy is taking a ride on bicycle. But the road is not so well to go with uniform speed or with uniform acceleration. The graph of distance – time of boy’s journey is shown in following graph.

## Question 157 (1 of 3 Based on Passage)

Physics
Edit

### Question

MCQ▾

The total distance travelled by the boy is:

### Choices

Choice (4)Response

a.

b.

c.

d.

All of the above