# AP (Advanced Placement) Physics(B-C): Questions 448 - 452 of 920

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## Passage

A person went for a walk one day. He walked East at and then North at .

## Question number: 448 (3 of 3 Based on Passage) Show Passage

MCQ▾

### Question

Average speed of the entire trip is:

### Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above

## Question number: 449

MCQ▾

### Question

Two thin lenses of power and are placed in contact with each other. Focal length of the combination is:

### Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above

## Question number: 450

MCQ▾

### Question

An object moved across a level floor with speed and stroked a rigid wall elastically. Again same object stroked the rigid wall at . If the contact time between object and wall both times were same, then what would be the ratio of the force the object exerts on the wall in first time to that in second time?

### Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above

## Question number: 451

MCQ▾

### Question

Two weights: and are placed at the ends of a meter scale. If the scale is balanced horizontally on pivot, then what would be the position of pivot?

### Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above

## Question number: 452

MCQ▾

### Question

A point charge is placed at distance far from a point . The electric field at point due to point charge is . If we move point charge, up to distance from its original position, towards the point , then what will be the electric field at point ?

### Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above