GATE (Graduate Aptitude Test in Engineering) Physics: Questions 216 - 220 of 659

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Question number: 216

» Nuclear and Particle Physics » Nuclear Reaction

Appeared in Year: 2011

MCQ▾

Question

A neutron passing through a detector is detected because of –

Choices

Choice (4) Response

a.

The ionization it produces

b.

The electron – hole pairs it produces

c.

The scintillation light it produces

d.

The secondary particles produced in a nuclear reaction in the detector medium

Question number: 217

» Electronics » Amplifier and Oscillator Circuits

Appeared in Year: 2011

MCQ▾

Question

Which of the following statements is correct for a common emitter amplifier circuit?

Choices

Choice (4) Response

a.

The output is taken from the emitter

b.

There is phase shift between input and output voltages

c.

p-n junction are forward biased

d.

Both c. and b. are correct

Question number: 218

» Classical Mechanics » Relativistic Kinematics

Appeared in Year: 2013

MCQ▾

Question

An electron is moving with a velocity of in the same direction as that of a moving photon. The relative velocity of the electron with respect to photon is –

Choices

Choice (4) Response

a.

b.

c.

d.

f

Question number: 219

» Classical Mechanics » Mass-Energy Equivalence

Appeared in Year: 2013

Short Answer Question▾

Write in Short

Consider the decay of a pion into a muon and an anti – neutrino in the pion rest frame.

The energy of the emitted neutrino, to the nearest integer is .

Question number: 220

» Thermodynamics and Statistical Physics » First and Second Order Phase Transitions

Appeared in Year: 2013

MCQ▾

Question

Across a first order phase transition, the free energy is –

Choices

Choice (4) Response

a.

Proportional to the temperature

b.

Such that the first derivative with respect to temperature is continuous

c.

A continuous function of the temperature but its derivative is discontinuous

d.

A discontinuous function of the temperature

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