Step 1: Analyze the Properties of Electromagnetic Waves
Electromagnetic waves consist of oscillating electric and magnetic fields that are perpendicular to each other and to the direction of propagation, making them transverse in nature.
Their energy density in the electric and magnetic fields is equal.
They travel in free space with a speed:
Where:
= Speed of electromagnetic waves in free space
= Permeability of free space
= Permittivity of free space
Step 2: Address the Incorrect Property
Electromagnetic waves are produced by accelerated charges, not charges moving with uniform speed. Thus, option (3) is incorrect.
Step 3: Conclusion
The property not belonging to electromagnetic waves is that they originate from charges moving with uniform speed.
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The potential (V) at any axial point, at 2 m distance(r) from the centre of the dipole of dipole moment vector
of magnitude, 4 × 10-6 C m, is ± 9 × 103 V.
(Take SI units)
Reason R : , where r is the distance of any axial point, situated at 2 m from the centre of the dipole.
In the light of the above statements, choose the correct answer from the options given below :
The output (Y) of the given logic gate is similar to the output of an/a :