# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1768 - 1771 of 2320

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## Question number: 1768

Edit
MCQ▾

### Question

P, Q and R are three particles of a medium which lie on the x-axis. A sine wave of wavelength λ is travelling through the medium in the x -direction. P and R always have the same speed, while P and Q always have the same velocity. The minimum distance between –

(1) P and R is λ

(2) P and Q is

(3) Q and R is

(4) P and R is

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

### Choices

Choice (4)Response

a.

1 and 2 are correct

b.

1,2 and 3 are correct

c.

2 and 4 are correct

d.

1 and 3 are correct

## Question number: 1769

Edit
Assertion-Reason▾

### Assertion (Ꭺ)

Damping decreases the time period of oscillation of a simple pendulum.

### Reason (Ꭱ)

Damped oscillation implies loss of energy.

### Choices

Choice (4)Response

a.

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

b.

Ꭺ is true but Ꭱ is false

c.

Ꭺ is false but Ꭱ is true

d.

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

## Question number: 1770

Edit
MCQ▾

### Question

Equation of motion in the same direction is given by , . The amplitude of the resultant particle will be,

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 1771

Edit
MCQ▾

### Question

The equation of a wave is given as .

Where x is in meter and t in sec, then the correct statement is,

### Choices

Choice (4)Response

a.

b.

c.

d.

None of the above

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