CSIR (Council of Scientific & Industrial Research) Physical Sciences: Questions 104 - 107 of 463

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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 –

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 in the circuit is – (December)

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 105

» Classical Mechanics » Special Theory of Relativity » Relativistic Kinematics

Appeared in Year: 2012

MCQ▾

Question

Let 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.

b.

c.

p = mv

d.

Question number: 106

» Thermodynamic and Statistical Physics » Planck's Distribution Law

Appeared in Year: 2014

MCQ▾

Question

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

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 107

» Electromagnetic Theory » Reflection and Refraction

Appeared in Year: 2011

MCQ▾

Question

In a Young’s double slit interference experiment, the slits are at a distance 2L from each other and the screen is at a distance D from the slits. If a glass slab of refractive index and thickness is placed in the path of one of the beams, the minimum value of d for the central fringe to be dark is – (December)

Choices

Choice (4) Response

a.

b.

c.

d.

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