# KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics: Questions 35 - 37 of 268

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## Question number: 35

Appeared in Year: 2011

MCQ▾

### Question

Two bulbs of identical volumes connected by a small capillary are initially filled with an ideal gas at temperature T. Bulb 2 is heated to maintain a temperature 2T while bulb 1 remains at temperature T. Assume throughout that the heat conduction by the capillary is negligible. Then the ratio of final mass of the gas in bulb 2 to the initial mass of the gas in the same bulb is close to –

### Choices

Choice (4) Response

a.

b.

c.

d.

1

## Question number: 36

Appeared in Year: 2010

MCQ▾

### Question

A narrow parallel beam of light falls on a glass sphere of radius R and refractive index µ at normal incidence. The distance of the image from the outer edge is given by

### Choices

Choice (4) Response

a.

b.

c.

d.

## Question number: 37

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

Appeared in Year: 2011

MCQ▾

### Question

A container with rigid walls is covered with perfectly insulating material. The container is divided into two parts by a partition. One part contains a gas while the other is fully evacuated (vacuum). The partition is suddenly removed. The gas rushes to fill the entire volume and comes to equilibrium after a little time. If the gas is not ideal.

### Choices

Choice (4) Response

a.

The initial pressure of the gas equals its final pressure

b.

The initial temperature of the gas equals its final temperature

c.

The initial internal energy of the gas equals its final internal energy

d.

The initial entropy of the gas equals its final entropy

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