1.

Statement - 1 : Two longitudinal waves given by equations: y_(1)(x,t) = 2 a sin(omega t- kx) and y_(2) (x,t) = a sin (2 omega t - 2kx) will have equal intensity . Statement -2 : Intensity of waves of given frequency in same medium is proportional to square of amplitude only .

Answer»

Satement-I is true, statement -II is false.
Statement -I is true, Statement -II is true, Statement -II is the CORRECT explanation of Statement -I.
Statement -I is true, Statement -II is true, Statement -II is notthe correct explanation of Statement -I.
Statement-I is false, Statement-II is true.

Solution :Since,`I prop A^(2) OMEGA^(2) `
`I_(1) prop (2a)^(2) omega^(2) `
`I_(2) prop a^(2) (2omega)^(2) `
`I_(1) = I_(2) `
Intensity depends on FREQUENCY ALSO.
so , correct choice is a.


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