# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 1808 - 1812 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: 1808

Edit
MCQ▾

### Question

Which device is used to measure the potential difference between two points of a conductor in the laboratory?

### Choices

Choice (4)Response

a.

Potentiometer

b.

Galvanometer

c.

Voltmeter

d.

Ammeter

## Question number: 1809

Edit
MCQ▾

### Question

Which two circuit components are connected in parallel in the following circuit diagram?

### Choices

Choice (4)Response

a.

Voltmeter and resistor

b.

Ammeter and resistor

c.

Rheostat and voltmeter

d.

Voltmeter and ammeter

## Question number: 1810

Edit
MCQ▾

### Question

A laser beam is used for carrying out surgery because it

### Choices

Choice (4)Response

a.

Is highly directional

b.

Is highly monochromatic

c.

Can be sharply focused

d.

Is highly coherent

## Question number: 1811

Edit
MCQ▾

### Question

An open organ pipe is in resonance in its 2 nd harmonic with tuning fork of frequency f 1 now; it is closed at one end. If the frequency of the tuning fork is increased slowly from f l then again a resonance is obtained with a frequency f 2. If in this case the pipe vibrates n th harmonics then

### Choices

Choice (4)Response

a.

b.

c.

d.

## Question number: 1812

Edit
Assertion-Reason▾

### Assertion (Ꭺ)

Velocity of particles, while crossing mean position (in stationary waves) varies from maximum at antinodes to zero at nodes.

### Reason (Ꭱ)

Amplitude of vibration at antinodes is maximum and at nodes, the amplitude is zero, and all particles between two successive nodes cross the mean position together.

### Choices

Choice (4)Response

a.

Both Ꭺ and Ꭱ are false

b.

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

c.

Ꭺ is true but Ꭱ is false

d.

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

Developed by: