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| Wave and its Characteristics |
Waves
Wave, wave motion, transverse wave, longitudinal wave gseb
physics for std 11 &12
LET US FLOAT UP & DOWN WITH
" WAVES "
CALM WATER BEHAVES LIKE A PLANE
MIRROR, SO WE CAN SEE THE IMAGE ON IT.
WHEN
A STONE IS THROWN, TRANSVERSE
–WAVES PROPAGATE THROUGH WATER & THE IMAGE DISAPPEARS.
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| Waves |
DEFINITION:-
THE MOTION OF THE DISTURBANCE IN THE ELASTIC MEDIUM OR FREE SPACE IS CALLED A WAVE.
THE MOTION OF THE DISTURBANCE IN THE ELASTIC MEDIUM OR FREE SPACE IS CALLED A WAVE.
CHARACTERISTICS
OF WAVE MOTION
1.WAVE
MOTION IS A PERIODIC DISTURBANCE WHICH IS PRODUCED BY A VIBRATING BODY.
2.IN A
WAVE MOTION,THE PARTICLES OF THE MEDIUM DO NOT MOVE FROM ONE PLACE TO
ANOTHER.THEY ONLY VIBRATE ABOUT FIXED POSITIONS,PASSIVE ON ENERGY THEY POSSESS
FROM PARTICLES TO PARTICLE.
3.A WAVE
MOTION TRAVELS AT THE SAME SPEED IN ALL DIRECTIONS.
4.A WAVE
MOTION TRANSFERS ENERGY FROM ONE POINT TO ANOTHER.IT DOES NOT TRANSFER ANY
MATTER.
5.THE
VELOCITY OF WAVE MOTION DEPENDS ONLY ON THE MEDIUM AND NOT ON THENATURE OR
MOTION OF THE SOURCE.
TYPES OF
WAVES.
TRANSEVERSE
WAVES
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| Transverse wave |
A WAVE IN
WHICH THE PARTICLES OF THE MEDIUM VIBRATE UP AND DOWN AT RIGHT ANGLES TO THE
DIRECTION OF WAVE MOTION IS CALLED A TRANSEVERSE WAVE.
EXAMPLES
OF TRANSVERSE WAVE.
1.THE
WAVES PRODUCED BY MOVING ONE END OF THE ROPE UP AND DOWN.
2.THE
WAVES PRODUCED BY THROWING A STONE IN THE WATER.
3.LIGHT
WAVES COMING FROM THE SUN.
LONGITUDINAL
WAVES.
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| Longitudinal wave |
A WAVE IN
WHICH THE PARTICLES OF THE MEDIUM VIBRATE BACK AND FORTH IN THE SAME DIRECTION
OF THE WAVE IS CALLED A LONGITUDINAL WAVE.
EXAMPLES
:-
1. THE
WAVES WHICH TRAVEL ALONG A SPRING. 2.
THE SOUNDS PRODUCED BY TABLA, VIOLIN,
SITAR ETC.
DISPLACEMENT-DISTANCE GRAPH
OF TRANSVERSE WAVE.
DEFFERENCE :-
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| Transverse wave |
THE
ELEVATION IN A TRANSVERSE WAVE IS CALLED CREST.
THE
DEPRESSION IN A TRANSVERSE WAVE IS CALLED TROUGH.
LONGITUDINAL WAVE.
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| Longitudinal wave |
When a
longitudinal wave passes through a medium, say air, some of the particles of
air get crowded together and form compressions whereas other particles go
farther apart and form rarefactions. A longitudinal wave is represented
pictorially by showing the compressions and rarefactions.
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| Waves |
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| waves index |
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| Waves Frequency |
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| Wave length |
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| Waves Amplitude |
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| Waves Velocity |
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| Velocity calculation waves |
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| Types of wave Transverse waves |
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| Longitudinal wave |
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| Standing waves |
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| Musical instrumental waves |
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| Wind instruments waves |
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| wind instruments waves |
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| String instruments waves |
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| Audible frequency wave |
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| Ultrasonic and subsonic waves |
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| Ultrasonic sounds wave |
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| Ocen depth |
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| Seismograph |
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| Doppler effect |
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| Tuning fork |
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| Acoustics of Auditorium |
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| Test yourself |
Waves
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