# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 38 - 41 of 2320

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## Question number: 38

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Assertion-Reason▾

### Assertion (Ꭺ)

Parallax method cannot be used for measuring distances of stars more than 100 light years away.

### Reason (Ꭱ)

Because parallax angle reduces so much that it cannot be measured accurately.

### Choices

Choice (4)Response

a.

Both Ꭺ and Ꭱ are false

b.

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

c.

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

d.

Ꭺ is false but Ꭱ is true

## Question number: 39

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MCQ▾

### Question

Which of the following pairs have same dimensions?

### Choices

Choice (4)Response

a.

Light year and wavelength

b.

Energy and Young’s modulus

c.

Torque and work

d.

Both a. and c. are correct

## Question number: 40

Edit
MCQ▾

### Question

A train is moving towards east and a car is along north, both with same speed. The observed direction of car to the passenger in the train is

### Choices

Choice (4)Response

a.

East-north direction

b.

South-east direction

c.

West-north direction

d.

Question does not provide sufficient data or is vague

## Question number: 41

Edit
MCQ▾

### Question

A small block slides without friction down an inclined plane starting from rest. Let Sn be the distance travelled from time t = n – 1 to t = n. then

is

### Choices

Choice (4)Response

a.

b.

c.

d.

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