Physics Past Questions and Answers

In the wave equation y = E_o, sin(299t - \(\pi\)), E_o represents the

The size of the hole of a pin hole camera is increased. The resultant image formed becomes

The refractive index of a medium relative to air is 1.8. Calculate to the nearest degree, the critical angle for the medium

A converging lens of focal length 15cm forms a virtual image at a point 10cm from the lens. Calculate the distance of the object from the lens

In a compound microscope, the image formed by the objective lens is at a distance of 3.0cm from the eye lens. Calculate the focal length of the eye lens