Wave equation is given by y = 10 cos(t + x), if it reflects and reflected wave looses 36% of its energy then
1
Equation of reflected wave will be y = 8 cos (t - x)
2
Frquency of incident wave will be \(\frac{1}{2\pi}\) (sec)-1
3
Incident and reflected wave will have different frequencies
4
All of these
5
Question Not Attempted