To investigate the reflection of light by a plane mirror.

This is called total internal reflection (TIR). The angle of incidence when the angle of refraction is 90 o, and the ray changes from just refracting to total internal reflection, is called the ...

Under this physical law, light strikes and bounces off a smooth, reflective surface with an equal angle. This is why your reflection in a bathroom mirror looks realistic, whereas your image in a ...

All it is is a device that measures the angle between two objects ... The arm can be moved to a position where the sun's reflection off the mirror also reflects off mirror A and through the ...