1 pts Choose from below the incorrect statement about the oscilloscope used in our experiments. The horizontal axis displays time t. The display on the oscilloscope can be frozen. The oscilloscope can display three separate waveforms. The vertical axis displays signal in units of cm. The signals displayed are periodic in time.1 pts In this class we carried out experiments on different types of waves. Which of the following is not a correct statement about waves? O Refraction occurs at the interface between two media. As the width of a slit decreases, the spatial extent of the light that passes through the slit keeps decreasing. Resolution of microscopes and telescopes are limited by the properties of waves they detect. O Different frequency of light exhibit different angles of refraction at the interface between two media. Waves can undergo reflection and transmission.1 pts Two speakers are located close to each other. One speaker puts out sound waves of the form 10cos(2000nt) and the other speaker puts out sound waves of the form 10cos(2112xt). Which statement correctly describe these two sound waves? O The two waves add due to diffraction of the two sound waves. An observer would hear sound of single frequency at 1028 Hz. A beat frequency 112 Hz is heard. Beat is heard because sound waves are transverse waves. A beat frequency of 56 Hz is heard