A wave frequency `100 Hz` travels along a string towards its fixed end . When this wave travels back after reflection , a node is formed at a distance of `10 cm `from the fixed end . The speed of the wave (incident and reflected) is

A wave of frequency 100 Hz s sent along a string towards a fixed unit. When this wave travels back after reflection a node is formed at a distance of 10 cm from the fixed end of the string.The speeds of incident (or reflected) waves are :

A wave of frequency 100Hz is sent along a string towards a fixed end. When this wave travles back then after reflection, a node is formed at a minimum distance of 10 cm from the fixed end of the string. The speed of the incident wave is