What can you say about standing waves created in the lab for the steel spring? O You can create standing waves by wiggling the steel spring up and down at any frequency as long as you wiggle it hard enough. O There are three maxima in the third harmonic standing wave. The standing wave in the steel spring is formed by the interference of two waves travelling in the same direction with the same frequency. The lowest frequency standing wave correspond to one wavelength that just fits between two ends. O The velocity of the wave travelling in the steel spring can be determined from the speed of sound at room temperature.What can you say about reflection and refraction of waves? Snell's law only applies to light and not microwaves. Reflection and refraction can occur for all different types of waves. O Reflection of laser light from a cardboard paper is sharply peaked at one angle just like reflection from a mirror. Total internal reflection can occur when light goes from air to water. They do not apply to microwaves since the wavelength is too large.1 pts Which of the following statement is not true for oscillatory motions? Oscillation frequency of a mass on a spring is reduced by half when the mass is quadrupled (four times larger). The mass moves the slowest at the equilibrium position of the oscillatory motion. The frequency of oscillation for a mass on a string does not depend on the mass. To measure the period of the oscillation, it is better to measure several cycles of the motion in order to increase the accuracy of your data. During the oscillatory motion, the acceleration of the mass is smallest at the equilibrium position