Electromagnetic Waves
Displacement current, EM spectrum, basic features of EM waves.
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Take a full mock →Q1 · Electromagnetic Waves · EASY
The concept of displacement current was introduced by Maxwell to explain which of the following phenomena?
Q2 · Electromagnetic Waves · MEDIUM
An electromagnetic wave is propagating in vacuum along the z-direction. The electric field oscillates sinusoidally along the x-direction with an amplitude of 30 V/m. What is the amplitude of the oscillating magnetic field?
Q3 · Electromagnetic Waves · EASY
Arrange the following electromagnetic waves in order of increasing wavelength: (I) Visible light, (II) Microwaves, (III) X-rays, (IV) Radio waves.
Q4 · Electromagnetic Waves · MEDIUM
A parallel plate capacitor with circular plates of radius 5 cm is being charged. The electric field between the plates is changing at a rate of 10⁹ V/(m·s). What is the displacement current flowing between the plates? (Take ε₀ = 8.85 × 10⁻¹² F/m)
Q5 · Electromagnetic Waves · EASY
Which of the following electromagnetic waves has the shortest wavelength?