KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Physics: Questions 124 - 127 of 253

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Question number: 124

» Rotational Motion » Radius of Gyration

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

» Rotational Motion » Angular Momentum

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 Equation , than,

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

None of the above

Question number: 126

» Physics and Measurement » Errors in Measurement

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 Equation and Equation , respectively, the mass of the object is – (2015)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 127

» Kinetic Theory of Gases » Work Done on Compressing a Gas

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.

Equation

b.

Equation

c.

Equation

d.

Equation

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