In case of linearly polarised light, the magnitude of the electric field vector
A. does not change with time
B. varies periodically with time
C. increases and decreases linearly with time
D. is parallel to the direction of propagation
A. does not change with time
B. varies periodically with time
C. increases and decreases linearly with time
D. is parallel to the direction of propagation
Correct Answer – B
Electric field vector is the form of electromagnetic wave, hence it varies periodically with time.