2. Standing waves can be formed by reflecting light from a mirror and allowing the reflected light to interfere with the incident light. Suppose that we do so using light with a wavelength of 600 nm (6.00 x 10-7 m). Assume that there is a node at the mirror. a) How far from the mirror will we encounter the first antinode? b) What is the separation of adjacent antinodes as we move away from the mirror? a 3. A transmitter sends out 1.8 x 101 waves per minute and generates a standing wave pattern. The radio waves travel at the speed of light to a receiver 20.0 km away. Determine: a) the frequency in hertz. b) the period c) the wavelength. d) the time for one crest to travel from the transmitter to the receiver. e) the number of nodes between the transmitter and the receiver. 15 83