KVPY Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics: Questions 32 - 35 of 268

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Question number: 32

» Work, Energy and Power » Conservation of Mechanical Energy

Appeared in Year: 2010

MCQ▾

Question

Two identical particles of mass ‘m’ and charge q are shot at each other from a very great distance with an initial speed v. The distance of closest approach of these charges is –

Choices

Choice (4) Response

a.

0

b.

Equation

c.

Equation

d.

Equation

Question number: 33

» Thermodynamics » Laws of Thermodynamics » First Law of Thermodynamics

Appeared in Year: 2010

MCQ▾

Question

A van der Waal’s gas obeys the equation of state Equation . Its internal energy is given by Equation . The equation of quasistatic adiabatic for this gas is given by-

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 34

» Oscillations and Waves » Periodic Motion - Period Frequency

Appeared in Year: 2010

MCQ▾

Question

A book is resting on shelf that is undergoing vertical simple harmonic oscillations with amplitude of 2.5 cm. What is the minimum frequency of oscillation of the shell for which the book will lose contact with the shelf? (Assume that g = 10 m/s2)

Choices

Choice (4) Response

a.

125.6 Hz

b.

20 Hz

c.

3.18 Hz

d.

10 Hz

Question number: 35

» Kinetic Theory of Gases » Kinetic Theory of Gases

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.

Equation

b.

Equation

c.

Equation

d.

1

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