KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Physics: Questions 105 - 106 of 253

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Question number: 105

» Center of Mass » Centre of Mass of a Two-Particle System

Appeared in Year: 2013

MCQ▾

Question

Two identical uniform rectangular blocks (with longest side L) and a solid sphere of radius R are to be balanced at the edge of a heavy table such that the centre of the sphere remains at the maximum possible horizontal distance from the vertical edge of the table without toppling as indicated in the figure.

 System of two identical rectangular blocks and a sphere

System of Two Identical Rectangular Blocks and a Sphere

In figure two identical uniform rectangular blocks and a solid sphere of radius R are to be balanced at edge of a heavy table.

If the mass of each block is M and of the sphere is, then the maximum distance x that can be achieved is,

Choices

Choice (4) Response

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Question number: 106

» Properties of Solids & Liquids » Specific Heat Capacity

Appeared in Year: 2013

MCQ▾

Question

A 10.0 W electrical heater is used to heat a container filled with 0.5 kg of water. It is found that the temperature of the water and the container rise by 3 K in 15 minutes. The container is then emptied, dried, and filled with 2 kg of oil. It is now observed that the same heater raises the temperature of the container-oil system by 2 K in 20 minutes. Assuming no other heat losses in any of the processes, the specific heat capacity of the oil is.

Choices

Choice (4) Response

a.

b.

c.

d.

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