# NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics: Questions 46 - 50 of 2320

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## Question number: 46

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MCQ▾

### Question

P, Q and R are three balloons ascending with velocities U, 4U and 8U respectively. If stones of the same mass be dropped from each, when they are at the same height, then

### Choices

Choice (4)Response

a.

Stone from R reaches the ground first

b.

Stone from Q reaches the ground first

c.

Stone from P reaches the ground first

d.

They reach the ground at the same time

## Question number: 47

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MCQ▾

### Question

Three different objects of masses m1, m2 and w3 are allowed to fall from rest and from the same point ‘O’ along three different frictionless paths. The speeds of the three objects, on reaching the ground, will be in the ratio of

### Choices

Choice (4)Response

a.

b.

m 1 : m 2: m 3

c.

m 1 : 2m 2: 3m 3

d.

1: 1: 1

## Question number: 48

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MCQ▾

### Question

Time taken by an object falling from rest to cover the height of h1 and h2 is respectively t1 and t2 then the ratio of ty to t2 is

### Choices

Choice (4)Response

a.

2h 1: h 2

b.

:

c.

h 1: h 2

d.

h 1: 2h 2

## Question number: 49

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MCQ▾

### Question

Which of the following pairs have same dimensions?

### Choices

Choice (4)Response

a.

Angular momentum and work

b.

Torque and Energy

c.

Energy and Young’s modulus

d.

Energy and wavelength

## Question number: 50

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MCQ▾

### Question

X = 3YZ 2 find dimensions of Fin (MKSA) system, if X and Z are the dimensions of capacity and magnetic field respectively

### Choices

Choice (4)Response

a.

[M -3 L -2 T -4 A -1]

b.

[M L -2]

c.

[M -3 L -2 T 8 A 4]

d.

[M -3 L -2 T 4 A 4]

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