KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics: Questions 59 - 61 of 268

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Question number: 59

» Thermodynamics » Work in Thermodynamic Process and PV Diagrams

Appeared in Year: 2011

MCQ▾

Question

One mole of an ideal gas at initial temperature T, undergoes a quasi-static process during which the volume V is doubled. During the process the internal energy U obeys the equationEquation , where a is a constant. The work done during this process is

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 60

» Work, Energy and Power » Work-Energy Theorem

Appeared in Year: 2012

MCQ▾

Question

In one model of the election, the mass of electron me is thought to be a uniformly charged shell of radius R and total charge e, whose electrostatic energy E is equivalent to its mass me via Einstein’s mass energy relation E = mec2. In this model, R is approximately – (me = 9.1 × 10-31kg, c = 3 × 108 ms-1, Equation magnitude of the electron charge = 1.6 × 10-19 C)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 61

» Laws of Motion » Law of Conservation of Linear Momentum

Appeared in Year: 2011

MCQ▾

Question

At a distance l from a uniformly charged long wire, a charged particle is thrown radially outward with a velocity u in the direction perpendicular to the wire. When the particle reaches a distance 2l from the wire its speed is found to beEquation . The magnitude of the velocity, when it is a distance 4l away from the wire, is (ignore gravity)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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