Question

Why does light travel as a wave?

(a) Due to the small packets called photons

(b) Due to an electric field

(c) Light does not travel as a wave

(d) Due to its electromagnetic nature

I got this question in a job interview.

I would like to ask this question from Photoelectric Theory and Wave Theory of Light in division Dual Nature of Radiation and Matter of Physics – Class 12

Answer 1

Right option is (d) Due to its electromagnetic nature

For explanation: Light travels as a wave due to its electromagnetic nature. This is further facilitated by Maxwell’s equations which states that changing magnetic fields give rise to electric fields and changing electric fields give rise to magnetic fields.