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15
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The area in the longitudinal wave at which the medium particles are faraway from each other.
Rarefaction
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15
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We see lightning before hearing thunder.
Light is faster than sound
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15
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Wave motion is considered as periodic motion
As its motion is repeated regularly in equal period of time
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15
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The highest point in the transverse wave.
Crest
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15
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Sound wave travels in air with velocity 330 m/s and has a wavelength of 0.5 m, its frequency isâĶâĶâĶâĶâĶâĶâĶ..
660 Hz
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monster
Reset all scores!
Oops!
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fairy
Take points!
5
10
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20
25
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rocket
Go to first place!
Okay!
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baam
Lose 25 points!
Oops!
15
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Radio waves are electromagnetic waves.
As it doesn't need medium to travel through
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monster
Reset all scores!
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seesaw
Swap points!
Okay!
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gift
Win 25 points!
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thief
Give points!
5
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25
15
×
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thief
Give points!
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25
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fairy
Take points!
5
10
15
20
25
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gift
Win 25 points!
Okay!
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baam
Lose 5 points!
Oops!
15
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As the frequency of the wave increases, its wavelength decreases.
Bec. they are inversely proportional to each ther
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15
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The motion of rotary bee is considered as a periodic motion, but is not considered as an oscillatory motion
Bec. it repeats its motion but not on both sides of its rest point
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15
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Time taken by the oscillating body to make one complete oscillation.
Periodic time
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15
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Sound waves are longitudinal waves.
As medium particles vibrate perpendicular to the direction of wave propagation
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15
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It is the motion of an oscillating body when it passes by a fixed point on its path two successive times in the same direction.
One complete oscillation
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15
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Astronauts use wireless devices to talk to each other on Moon.
Bec. sound is a mechanical wave that can not travel through space
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