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(a) wavelength = 2.5 m
time period = (4.5-2.5 ) 10^-3=2 × 10-³
then , frequency = 1/time period = 1/2 × 10-³ hz
=>velocity = wavelength × frequency
=> velocity = 2.5 × 1/2 × 10-³
=> velocity = 2.5 × 500 = 1250 m/s
(b). Transverse waves are those in which the displacement is perpendicular to the velocity of the wave. Examples include light, a wiggling string, ocean waves, and ripples from a stone thrown into a pond. Longitudinal waves have displacement along the same direction of thewave velocity.
(c) time = 3.2 s
speed of sound = 1500m/s
distance = speed of sound × time
distance = 1500 × 3.2 = 4800 m
time period = (4.5-2.5 ) 10^-3=2 × 10-³
then , frequency = 1/time period = 1/2 × 10-³ hz
=>velocity = wavelength × frequency
=> velocity = 2.5 × 1/2 × 10-³
=> velocity = 2.5 × 500 = 1250 m/s
(b). Transverse waves are those in which the displacement is perpendicular to the velocity of the wave. Examples include light, a wiggling string, ocean waves, and ripples from a stone thrown into a pond. Longitudinal waves have displacement along the same direction of thewave velocity.
(c) time = 3.2 s
speed of sound = 1500m/s
distance = speed of sound × time
distance = 1500 × 3.2 = 4800 m
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