AIPMT 2004 | Waves Question 50 | Physics

The phase difference between two waves. represented by
y₁ = 10^$$-$$6 sin[100t + (x/50) + 0.5] m
y₂ = 10^$$-$$6 cos[100t + (x/50)] m,
where x is expressed in metres and t is exressed in secondss, is approximately.

1.07 radians

2.07 radians

0.5 radians

1.5 radians

AIPMT 2004

MCQ (Single Correct Answer)

-1

Out of Syllabus

A car is moving towards a high cliff. The driver sounds a horn of frequency $$f$$. The reflected sound heard by the driver has frequency $$2f$$. If v is the velocity of sound, then the velocity of the car, in the same velocity units, will be

v/$$\sqrt 2 $$

v/3

v/4

v/2

AIPMT 2003

MCQ (Single Correct Answer)

-1

Out of Syllabus

An observer moves towards a stationary source of sound with a speed 1/5^th of the speed of sound. The wavelength and frequency of the source emitted are $$\lambda $$ and $$f$$ respectively. The apparent frequency and wavelength recorded by the observer are respectively

1.2 $$f$$, 1.2 $$\lambda $$

1.2 $$f$$, $$\lambda $$

$$f$$, 1.2 $$\lambda $$

0.8 $$f$$, 0.8 $$\lambda $$

AIPMT 2002

MCQ (Single Correct Answer)

-1

A wave travelling in positive X-direction with a $$=$$ 0.2 ms^$$-$$2, velocity = 360 ms^$$-$$1 and $$\lambda $$ $$=$$ 60 m, then correct expression for the wave is

$$y = 0.2\sin \left[ {2\pi \left( {6t + {x \over {60}}} \right)} \right]$$

$$y = 0.2\sin \left[ {\pi \left( {6t + {x \over {60}}} \right)} \right]$$

$$y = 0.2\sin \left[ {2\pi \left( {6t - {x \over {60}}} \right)} \right]$$

$$y = 0.2\sin \left[ {\pi \left( {6t - {x \over {60}}} \right)} \right]$$

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