Newton postulated his corpuscular theory on the basis of
Newton’s rings
Colours of thin films
Rectilinear propagation of light
Dispersion of white light
Explain the refraction of a plane wavefront with a thin convex mirror.
Huygen’s principle of secondary wavelets may be used to
Explain the reflection of plane wavefront from concave mirror.
According to corpuscular theory of light, the different colours of light are due to
A light beam is incident on a denser medium whose refractive index is $1.414$ at an angle of incidence $45^o$ . Find the ratio of width of refracted beam in a medium to the width of the incident beam in air