# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 736 - 740 of 2247

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## Question number: 736

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MCQ▾

### Question

Two bodies of masses 2 kg and 4 kg are moving with velocities 5 m/s and 8 m/s respectively along same direction. Then the velocity of their center of mass will be

### Choices

Choice (4) Response

a.

6.4 m/s

b.

7.3 m/s

c.

5.25 m/s

d.

8.1 m/s

## Question number: 737

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MCQ▾

### Question

In an L - R circuit, the value of L is henry and the value of R is 30 ohm. If in the circuit, an alternating e. m. f. of 200 volt at 50 cycles per sec is connected, the impedance of the circuit and current will be

### Choices

Choice (4) Response

a.

40.4 Ω, 5A

b.

30.7 Ω, 6.5A

c.

50 Ω, 4A

d.

11.4Ω, 17.5A

## Question number: 738

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MCQ▾

### Question

In the circuit, E = 10 volt, R1 = 5.0 ohm, R 2 = 10 ohm and L = 5.0 henry. The current just after the switch S is pressed is. A Diagram Consists of Resistors, Inductor, Switch and Battery In figure, inductor L, and resistors R1 and R2 are connected with battery E and switch S.

### Choices

Choice (4) Response

a.

2.0A

b.

6.0A

c.

5.0A

d.

3.0A

## Passage

A system consists of block A and B each of mass m connected by a light spring as shown in the figure with block B in contact with a wall. The block A compresses the spring by 3mg /k from natural length of spring and then released from rest. Neglect friction anywhere. Block System with 2 Blocks a and B In above figure we show that block A and B which connected with spring.

## Question number: 739 (1 of 3 Based on Passage) Show Passage

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MCQ▾

### Question

Maximum extension in the spring after system loses contact with wall

### Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

## Question number: 740

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MCQ▾

### Question

An alternating current of frequency is flowing in a circuit containing a resistor of resistance R and a choke of inductance L in series. The impedance of this circuit is

### Choices

Choice (4) Response

a.

b.

c.

d.

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