Ray diverging from a point source from a wave front that is
Huygen wave theory allows us to know
Explain the reflection of plane wavefront from concave mirror.
Explain the reflection of a plane wave using Huygen's principle.
You have learnt in the text how Huygens’ principle leads to the laws of reflection and refraction. Use the same principle to deduce directly that a point object placed in front of a plane mirror produces a virtual image whose distance from the mirror is equal to the object distance from the mirror.