# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1681 - 1686 of 2320

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## Question number: 1681

» Oscillations and Waves » Simple Harmonic Motion » Oscillations of a Spring

Edit
MCQ▾

### Question

A spring of force constant k is cut into two pieces such that one piece is double the length of the other. Then the short piece will have a force constant of

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 1682

Edit
MCQ▾

### Question

The energy gap for diamond is nearly

### Choices

Choice (4)Response

a.

1 eV

b.

4 eV

c.

6 eV

d.

2 eV

## Question number: 1683

Edit
MCQ▾

### Question

The intrinsic semiconductor becomes an insulator at

### Choices

Choice (4)Response

a.

0°C

b.

300 K

c.

0 K

d.

-100°C

## Question number: 1684

Edit
MCQ▾

### Question

A piece of copper and the other of germanium are cooled from the room temperature to 80 K, then which of the following would be wrong statements?

(1) Resistance of each Increase

(2) Resistance of each Decrease

(3) Resistance of copper increases while that of germanium decreases

(4) Resistance of copper decreases while that of germanium increases

Select the correct answers and mark it according to the following codes:

### Choices

Choice (4)Response

a.

1 and 2 are correct

b.

2 and 4 are correct

c.

1,2 and 3 are correct

d.

1 and 3 are correct

## Question number: 1685

» Oscillations and Waves » Simple Harmonic Motion » Oscillations of a Spring

Edit
MCQ▾

### Question

A spring of force constant k is cut into two pieces such that one piece is double the length of the other. Then the long piece will have a force constant of

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 1686

Edit
Assertion-Reason▾

### Assertion (Ꭺ)

The graph of total energy of a particle in SHM w. r. t, position is a straight line with zero slope.

### Reason (Ꭱ)

Total energy of particle in SHM remains constant throughout its motion.

### Choices

Choice (4)Response

a.

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

b.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

c.

Ꭺ is false but Ꭱ is true

d.

Ꭺ is true but Ꭱ is false

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