A source of wave produces 30 crest and 30 trough in 0.3 sec.What is the period of the wave?

Frequency = No of waves / Time 

i did my calculations based on dis formula !!

hope u got it !

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 time period = time taken / total no. of waves

time taken = 0.3sec

total no. of waves = 30 (as 1 crest and 1 trough form a wave)

therefore,

time period = 0.3/30 = 0.01sec

hope this helps!!!!!

 @ FuRiOUz aLiNa, u should read the question before answering. the question is to find the time period.

hope u got it!!!!!

ime period = time taken / total no. of waves

time taken = 0.3sec

total no. of waves = 30 (as 1 crest and 1 trough form a wave)

therefore,

time period = 0.3/30 = 0.01sec

hence verified