Oscillations and Waves (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 150 - 154 of 195

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Question number: 150

» Oscillations and Waves » Displacement Relation for a Progressive Wave

MCQ▾

Question

A wave travelling in positive X-direction with A = 1.2 m has a velocity of 240 m/sec. If λ = 40 m, then correct expression for the wave is

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 151

» Oscillations and Waves » Displacement Relation for a Progressive Wave

MCQ▾

Question

The equation of a progressive wave is given by where x and y are in meter and t is in second. The velocity of the wave is,

Choices

Choice (4) Response

a.

b.

c.

d.

Passage

A particle performs linear SHM such that it is placed on platform-1 & platform-2 along with particles up and down with amplitude A = 8 cm. If the particle does not loose contact with platform anywhere and mass of particle is 2 kg, find:

Question number: 152 (1 of 1 Based on Passage) Show Passage

» Oscillations and Waves » Periodic Functions

MCQ▾

Question

The minimum, possible time period (Take )

Choices

Choice (4) Response

a.

0.1 sec.

b.

0.2 sec.

c.

0.4 sec.

d.

0.3 sec.

Question number: 153

» Oscillations and Waves » Doppler Effect in Sound

MCQ▾

Question

Doppler shift in frequency depends upon

Choices

Choice (4) Response

a.

The velocity of the observer

b.

The frequency of the wave produced

c.

The velocity of the source

d.

All c. , a. and b. are correct

Question number: 154

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

MCQ▾

Question

An open organ pipe is in resonance in its 2 nd harmonic with tuning fork of frequency f 1 now; it is closed at one end. If the frequency of the tuning fork is increased slowly from f l then again a resonance is obtained with a frequency f 2. If in this case the pipe vibrates n th harmonics then

Choices

Choice (4) Response

a.

b.

c.

d.