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An Intiative by Sri Chaitanya
a
Electric field, magnetic field and direction for propagation of waves produced by oscillating charged particles are in three mutually perpendicular directions
b
These wave do not required medium
c
Irrespective of the frequency or wavelength, the velocity of electromagnetic waves in vacuum is fixed as 2.997925 ×108ms-1
d
All are correct
answer is D.
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