AIIMS Physics: Questions 163 - 166 of 500

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Question number: 163

» Oscillations and Waves » Simple Harmonic Motion » Energy

Appeared in Year: 2001

MCQ▾

Question

A sings with a frequency (n) and B sings with a frequency 18 that of A. If the energy remains the same and the amplitude of A is a, then amplitude of B will be –

Choices

Choice (4) Response

a.

4a

b.

a

c.

8a

d.

2a

Question number: 164

» Kinetic Theory of Gases » Equation of State of a Perfect Gas

Appeared in Year: 1982

MCQ▾

Question

Two gases of equal molar mass are in thermal equilibrium. If Pa , Pb , Va and Vb are their respective pressures and volumes, then which relation is true –

Choices

Choice (4) Response

a.

PaVa=PbVb

b.

Va=Vb,VaVb

c.

PaPb,Va=Vb

d.

PaVa=PbVb

Question number: 165

» Communication System » Amplitude and Frequency Modulation

Appeared in Year: 2006

MCQ▾

Question

Given below is a circuit diagram of an AM demodulator

Circuit diagram of an AM demodulator

Circuit Diagram of an AM Demodulator

In figure circuit of an AM demodulator is shown. In which R and C parallel connected.

For good demodulation of AM signal of carrier frequency f, the value of RC should be –

Choices

Choice (4) Response

a.

RC<1f

b.

RC1f

c.

RC=1f

d.

RC1f

Question number: 166

» Oscillations and Waves » Standing Waves in Strings and Organ Pipes

Appeared in Year: 2000

MCQ▾

Question

A standing wave having 3 nodes and 2 antinodes is formed between 1.21 distances then the wavelength is

[AIPMT-98, AIIMS]

Choices

Choice (4) Response

a.

2.42

b.

4.84

c.

0.605

d.

1.21

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