# Experimental Skills-Screw Gauge (NEET Physics): Questions 1 - 4 of 29

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## Question number: 1

» Experimental Skills » Screw Gauge

MCQ▾

### Question

The velocities of three particles of masses 10g, 10g and 30g are 10i, 10j and 10k respectively. The velocity of the center of mass of the three particles is

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 2

» Experimental Skills » Screw Gauge

MCQ▾

### Question

Two spheres of masses 2M and M are initially at rest at. Distance R apart. Due to mutual force of attraction, they approach each other. When they are at separation R/2, the acceleration of the center of mass of spheres would be

### Choices

Choice (4) Response

a.

0 m/s 2

b.

gm/s 2

c.

12 gm/s 2

d.

3 gm/s 2

## Question number: 3

» Experimental Skills » Screw Gauge

MCQ▾

### Question

Consider a system of two particles having mass m 1 and m 2. If the particle of mass m 1 is pushed towards the centre of mass of particles through a distance d, by what distance would be particle of mass m 2 move so as to keep the centre of mass of particles at the original position?

### Choices

Choice (4) Response

a.

b.

d

c.

d.

## Question number: 4

» Experimental Skills » Screw Gauge

MCQ▾

### Question

The distance between the carbon atom and the oxygen atom in a carbon monoxide molecule is 1.1. Given, mass of carbon atom is 12 a. m. u. and mass of oxygen atom is 16 a. m. u. , calculate the position of the center of mass of the carbon monoxide molecule

### Choices

Choice (4) Response

a.

1 Å from the oxygen atom

b.

0.63 Å from the carbon atom

c.

0.12 Å from the oxygen atom

d.

6.3 Å from the carbon atom

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