# KVPY Stream-SA (Class 11) Physics: Questions 124 - 127 of 252

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## Question number: 124

MCQ▾

### Question

Radius of gyration of a body about an axis at a distance of 5 cm from its centre of mass is 15 cm. The radius of gyration about a parallel axis passing through its centre of mass is:

### Choices

Choice (4) Response

a.

14.14 cm

b.

13.95 cm

c.

15.25 cm

d.

14.35 cm

## Question number: 125

MCQ▾

### Question

Four balls A, B, C, D of mass 2kg, 6kg, 7kg, 9 kg, respectively are oscillating in turn on a spring of force constant 80 Nm-1. Deduce the angular frequencies of balls are , than,

### Choices

Choice (4) Response

a.

b.

c.

d.

None of the above

## Question number: 126

MCQ▾

### Question

In an experiment, mass of an object is measured by applying a known force on it, and then measuring its acceleration. If, in the experiment, the measured values of applied force and the measured acceleration are and , respectively, the mass of the object is – (2015)

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 127

MCQ▾

### Question

One jar contains gas-1 while the other gas-2. The density of gas 1 in the jar of is three times that of nitrogen. When both the gasses in the two jars are mixed, comparer their rates of diffusion,

### Choices

Choice (4) Response

a.

b.

c.

d.

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