CSIR Physical Sciences: Questions 103 - 106 of 401

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Question number: 103

» Thermodynamic and Statistical Physics » Free Energy

Appeared in Year: 2014

MCQ▾

Question

The free energy F of a system depends on a thermodynamic variable Equation as Equation with Equation . The value of Equation , when the system is in thermodynamic equilibrium, is – (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Zero

Question number: 104

» Electronics and Experimental Methods » Semiconductor Devices » Diodes

Appeared in Year: 2012

MCQ▾

Question

A diode D as shown in the circuit has an I – V relation that can be approximated by –

Equation

The circuit consists of a diode, resistor and a battery

The Circuit Consists of a Diode, Resistor and a Battery

In figure a diode D, resistor of 1 (ohm) and a battery of 10 V are connected.

The value of Equation in the circuit is – (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 105

» Classical Mechanics » Special Theory of Relativity » Relativistic Kinematics

Appeared in Year: 2012

MCQ▾

Question

Let Equation denote the speed, the magnitude of momentum, and the energy of a free particle of rest mass m. Then – (December)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

p = mv

d.

Equation

Question number: 106

» Thermodynamic and Statistical Physics » Planck's Distribution Law

Appeared in Year: 2014

MCQ▾

Question

A system can have three energy levels: Equation . The level Equation is doubly degenerate, while the others are non-degenerate. The average energy at inverse temperature Equation is – (June)

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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