Question Number 4634 by sanusihammed last updated on 16/Feb/16
$${Y}^{\mathrm{1}} \:=\:{Asin}\left(\mathrm{6}{x}\:−\:\mathrm{10}{t}\right) \\ $$$$ \\ $$$${Y}^{\mathrm{2}} \:=\:{Asin}\left(\mathrm{3}{x}\:−\:\mathrm{9}{t}\right) \\ $$$$ \\ $$$${Show}\:{that}\:{the}\:{medium}\:{is}\:{dispersive}.\:{If}\:{this}\:{two}\:{waves}\:\: \\ $$$${superpose}\:{obtain}\:{both}\:{the}\:{phase}\:{velocity}\:{and}\:{group}\:{velocity}\: \\ $$$${of}\:{a}\:{combine}\:{disturbance}. \\ $$
Commented by Yozzii last updated on 17/Feb/16
$${Physics}/{Engineering}? \\ $$
Commented by sanusihammed last updated on 17/Feb/16
$${yes} \\ $$