A) Let, consider a wave generator which generates 10 pulses per second. The speed of wave is 300m/s. What happens to the wavelength if the frequency of pulses is raised?
i) Wavelength rises
ii) Wavelength reduces
iii) Wavelength doesn’t modify
iv) The wave will move faster
B) Sally liked the opportunity to collect data from standing waves in a spring. She and her partner held the ends of the spring 4.0 meters apart. There were 5 nodes in standing wave generated. Sally moved her hand from the rest position back and forth all along the floor 20 times in 4 seconds. Determine the wavelength of the wave Sally prepared?
i) 6 m
ii) 1 m
iii) 2 m
iv) 4 m