a body send waves 10 cm long through medium a and 25 cm long in medium b if the velocity of waves in medium a is 80 cm s ^-1 then velocity of waves in mrdium b is
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Explanation:
Answer: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
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Given info : a body send waves 10 cm long through medium a and 25 cm long in medium b if the velocity of waves in medium a is 80 cm/s.
To find : The velocity of waves in medium b is...
solution : frequency remains same for all media of a wave.
so, frequency of wave in medium a = frequency of wave in medium b
⇒v₁/λ₁ = v₂/λ₂ [ as frequency = velocity/wavelength]
⇒ 80/10 = v₂/25
⇒ v₂ = 200 cm/s
Therefore the velocity of wave in medium b is 200 cm/s.
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