CSIR Physical Sciences: Questions 159 - 161 of 401

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Question number: 159

» Thermodynamic and Statistical Physics » Laws of Thermodynamics

Appeared in Year: 2011

MCQ▾

Question

The internal energy E of a system is given by E=bS3VN , where b is a constant and other symbols have their usual meaning. The temperature of this system is equal to – (December)

Choices

Choice (4) Response

a.

3bS2VN

b.

bS3V3N

c.

bS2VN

d.

(SN)2

Question number: 160

» Electronics and Experimental Methods » Filtering and Noise Reduction

Appeared in Year: 2014

MCQ▾

Question

Consider a Low Pass (LP) and High Pass (HP) filter with cut – off frequency fLP and fHP respectively, connected in series or in parallel configuration as shown in figure A and B below:

Series and Parallel Configuration of HP and LP filter

Series and Parallel Configuration of HP and LP Filter

In figure Low Pass (LP) and High Pass (HP) filter, connected in series and parallel configuration as shown in figure A and B, respectively.

Which of the following statement is correct? (December)

Choices

Choice (4) Response

a.

For fHP<fLP , A acts as a Band Pass filter and B acts as a Band Reject filter.

b.

For fHP>fLP , A passes the signal without filtering and B acts as a Band Reject filter.

c.

For fHP<fLP , A acts as a Band Pass filter and B passes the signal without filtering.

d.

For fHP>fLP , A stops the signal from passing through and B passes the signal without filtering.

Question number: 161

» Thermodynamic and Statistical Physics » Phase Equilibria

Appeared in Year: 2011

MCQ▾

Question

A particle is confined to the region x0 by a potential which increases linearly as u(x)=u0x . The mean position of the particle at temperature T is – (June)

Choices

Choice (4) Response

a.

u0kBT

b.

kBTu0

c.

(kBT)2u0

d.

kBTu0

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