# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 797 - 801 of 2247

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## Question number: 797

Edit
MCQ▾

### Question

Four bodies of equal mass start moving with same speed as shown in the figure. In which of the following combination the center of mass will remain at origin?

### Choices

Choice (4) Response

a.

b and d

b.

c and d

c.

a and c

d.

a and b

## Question number: 798

Edit
MCQ▾

### Question

Two inductors L 1 and L 2 are at a sufficient distance apart. Equivalent inductance when they are connected (i) in series (ii) in parallel are

### Choices

Choice (4) Response

a.

b.

c.

None

d.

## Question number: 799

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MCQ▾

### Question

A force of 100 N acts in the direction as shown in figure on a block of mass 10 kg resting on a smooth horizontal table. The speed acquired by the block after it has moved a distance of 10 m, will be - (in m/sec) (g = 10 m/sec 2)

### Choices

Choice (4) Response

a.

1.7 m/sec

b.

17 m/sec

c.

1.3 m/sec

d.

13.17 m/sec

## Question number: 800

Edit
MCQ▾

### Question

The work done in pulling a body of mass 3 kg along an inclined plane (angle 50°) with coefficient of friction 0.2 through 2 m, will be -

### Choices

Choice (4) Response

a.

98.08 J

b.

52.56 J

c.

91.08 J

d.

94.08 J

## Question number: 801

Edit
Assertion-Reason▾

### Assertion (Ꭺ)

The induced e. m. f. and current will be same in two identical loops of copper and aluminum, when rotated with same speed in the same magnetic field.

### Reason (Ꭱ)

Induced e. m. f. is proportional to rate of change of magnetic field while induced current depends on resistance of wire.

### Choices

Choice (4) Response

a.

Ꭺ is true but Ꭱ is false

b.

Both Ꭺ and Ꭱ are false

c.

Ꭺ is false but Ꭱ is true

d.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

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