1.

Two wires having different densities are joined at x = 0. An incident wave y_1 = A sin(wt - k_1x) , travelling to the right in the wire is partly reflected and partly transmitted at x=0. If A_rand A_tbe the amplitudes of reflected and transmitted waves respectively,

Answer»

`y_r = A_r sin (OMEGA t + k_1 X)`
`y_t = A_tsin(omega t - k_2x)`
`A_r = ((k_1 - k_2)/(k_1 + k_2))A_i`
`A_t = ((2k_1)/(k_1 + k_2))A_i`

Answer :A::B::C::D


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