Which of the following statements correctly explains why a total solar eclipse would be seen by people on only a small portion of the earth's surface? The
Water waves have a wavelength of 3.6cm and speed of 18cms\(^{-1 }\) in deep water. If the waves enter shallow water with wavelength of 2.0cm, calculate the speed of the waves in the shallow water.
An a.c. generator can be converted to a d.c. electric motor by replacing the
A ray of light travels obliquely from a less dense medium to a denser medium. Which of the following statements is true about the light?
An electron of mass 9.1x 10\(^{-31}\) kg is travelling at a speed of 2.0 x 10\(^6\)ms\(^{-1}\). Calculate the associate wavelength of the electron. [h = 6.6. x 10\(^{-34}\) Js]
