# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 347 - 350 of 2320

Access detailed explanations (illustrated with images and videos) to 2320 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Unlimited Access for Unlimited Time! View Sample Explanation or View Features.

Rs. 600.00 or

How to register?

## Question number: 347

Edit
MCQ▾

### Question

An engine of mass 5 x 10 4 kg pulls a coach of mass 4 x 10 4 kg. Suppose that there is a resistance of 1 N per 100 kg acting on both coach and engine, and that the driving

force of engine is 4500 N. The acceleration of the engine and tension in the coupling will respectively be

### Choices

Choice (4)Response

a.

0.04 m/s 2, 2000 N

b.

4 m/s 2, 200 N

c.

0.4 m/s 2, 200 N

d.

0.4 m/s 2, 20 N

## Question number: 348

Edit
MCQ▾

### Question

There is an air filled l pF parallel plate capacitor. When the plate separation is doubled and the space is filled with wax, the capacitance increases to 2pF. The dielectric constant of wax is

### Choices

Choice (4)Response

a.

YO

8

b.

6

c.

2

d.

4

## Question number: 349

Edit
MCQ▾

### Question

A cricket ball of mass 250 gm moving with a velocity of 25 m/s is hit by a bat so that it acquires a velocity of 30 m/s in the opposite direction. The force acting on the ball, if the contact time is 1/100 of a second, will be -

### Choices

Choice (4)Response

a.

632.5 N in the initial direction of ball

b.

130 N in the final direction of ball

c.

1.345 N in the initial direction of ball

d.

1300 N in the final direction of ball

## Question number: 350

Edit
MCQ▾

### Question

In the figure a capacitor is filled with dielectrics K 1, K 2 and K 3. The resultant capacitance is

### Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

Developed by: