#### A standing wave is formed by the superposition of two waves travelling in opposite directions.  The transverse displacement is given byWhat is the speed of the travelling wave moving in the positive x direction ?(x and t are in meter and second, respectively.) Option 1)  160 m/s Option 2) 90 m/s Option 3) 180 m/s Option 4)  120 m/s

As discussed in @7297

Speed of the travelling wave in the X direction will be 160 ms-1

Option 1)

160 m/s

This option is correct

Option 2)

90 m/s

This option is incorrect

Option 3)

180 m/s

This option is incorrect

Option 4)

120 m/s

This option is incorrect