Light propagates rectilinearly, due to

Light propagates rectilinearly because of its

Light propagates rectilinearly,because of its

In the word of Hyugens "Light propagates as longitudinal waves" comment on the above statement.

When light propagates in vacuum there is an electric field and a magnetic field. These fields are

When light propagates in vacuum there is an electric field and a magnetic field. These fields are

When light propagates in vacuum there is an electric field and a magnetic field. These fields

Light propagates 4 cm distance in glass of refractive index 1.5 in time t_(0) . In the same time t_(0) light propagates a distance of 4.8 cm in a medium. The refractive index of the medium is