# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 53 - 57 of 2184

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## Question number: 53

Edit
Assertion-Reason▾

### Assertion (Ꭺ)

Unit of Rydberg constant R is m-l

### Reason (Ꭱ)

It follows from Bohr’s formula v = R [

-

] the symbols have their usual meaning.

### Choices

Choice (4) Response

a.

Ꭺ is false but Ꭱ is true

b.

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

c.

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

d.

Both Ꭺ and Ꭱ are false

## Question number: 54

Edit
MCQ▾

### Question

A body travels for 15 second starting from rest with constant acceleration. If it travels distances S 1, S 2 and S 3, in the first five seconds, second five seconds and next five seconds respectively the relation between S 1, S 2 and S 3 is

### Choices

Choice (4) Response

a.

s 1 = s 2 = s 3

b.

s 1 =

s 2 =

s 3

c.

5s 1 = 3s 2 = s 3

d.

s 1 =

s 2 =

s 3

## Question number: 55

Edit
MCQ▾

### Question

A wire has a mass 0.3 + 0.003g, radius 0.5 + 0.005 mm and length 6 + 0.06 cm. The maximum percentage error in the measurement of its density is

### Choices

Choice (4) Response

a.

2

b.

3

c.

1

d.

4

## Question number: 56

Edit
MCQ▾

### Question

What is the relationship between dyne and newton of force?

### Choices

Choice (4) Response

a.

l dyne = 107 newton

b.

1 dyne = 10-7 newton

c.

1 dyne = 10 - 5 newton

d.

l dyne = 105 newton

## Question number: 57

Edit
MCQ▾

### Question

A particle moves along x-axis with acceleration a = a 0 (1 –t/T) where a 0 and T are constants if velocity at t = 0 is zero then find the average velocity from t = 0 to the time when a = 0.

### Choices

Choice (4) Response

a.

b.

c.

d.