KVPY Stream-SA (Class 11) Physics: Questions 124 - 127 of 252
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Question number: 124
» Rotational Motion » Radius of Gyration
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:
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| Choice (4) | Response | |
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| a. | 14.14 cm |
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| b. | 13.95 cm |
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| c. | 15.25 cm |
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| d. | 14.35 cm |
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Question number: 125
» Rotational Motion » Angular Momentum
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,
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| d. | None of the above |
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Question number: 126
» Physics and Measurement » Errors in Measurement
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)
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Question number: 127
» Kinetic Theory of Gases » Work Done on Compressing a Gas
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,
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