Out of speed, frequency and wavelength, name the parameter (s) which remain the same on refraction.
Obtain a relation between speed, frequency and wavelength of a wave.
You send a travelling wave along a particular string by oscillation one end. If you increase the freuency of the oscillation, do (a) the speed of the wave and (b) the wavelength of the wire increase, decrease, or remain the same? If, instead, you increase the tension in the string, do (c) the speed of the wave and (d) the wavelength of the wave increase, decrease, or remain the same?
Two interferring waves have the same wavelength, frequency and amplitude. They are travelling in the same direction but 90^(@) out of phase compared to individual waves. The resultant wave will have the same.
An observer moves towards a stationary source of sound with a speed ((1)/(5)) th of the speed of sound. The wavelength and frequency of the source emitted are lamda and f, respectively. The apparent frequency and wavelength recorded by the observer are, respectively.