JEE Advanced Physics: Electromagnetic Waves Practice Questions

14 questions with answers and step-by-step solutions. Tap any question to see the full worked solution.

Q1.
$The speed of electromagnetic waves in a vacuum is given by which expression?$
Easy
Q2.
$An electromagnetic wave is propagating in the positive x-direction. If the electric field vector is oscillating in the y-direction, then the magnetic field vect$
Easy
Q3.
$Which of the following statements is true regarding electromagnetic waves?$
Easy
Q4.
$What is the ratio of the amplitude of the electric field to the amplitude of the magnetic field for an electromagnetic wave in a vacuum?$
Easy
Q5.
$A parallel plate capacitor with circular plates of radius 0.1 m is being charged. The displacement current between the plates is 2 A. What is the rate of change$
Medium
Q6.
$A plane electromagnetic wave of frequency 50 MHz travels in free space along the positive x-direction. At a particular point in space and time, the electric fie$
Medium
Q7.
$I nan e l ec t r o ma g n e t i c w a v e, t h e am pl i t u d eo f t h e ma g n e t i c f i e l d i s 3 x 1 0^{-} 10 T . W ha t i s t h e am pl i t u d eo f t h ee l ec t r i c f i e l d a ssoc ia t e d w i t h t hi s w a v e in v a c uu m$
Medium
Q8.
$T h e a v er a g ee n er g y d e n s i t y o f an e l ec t r o ma g n e t i c w a v e in v a c uu mi s 1.06 x 1 0^{-} 11 J / m^{3} . W ha t i s t h e in t e n s i t y o f t h e w a v e ?$
Medium
Q9.
$T h e in t e n s i t y o f a pl an ee l ec t r o ma g n e t i c w a v e i s 0.02 W / m^{2} . W ha t i s t h er a d ia t i o n p r ess u r ee x er t e d b y t hi s w a v eo na p er f ec tl y ab sor bin g s u r f a ce ?$
Medium
Q10.
$A parallel plate capacitor with circular plates of radius R is being charged. The displacement current density between the plates is uniform and equal to Jd. Th$
Hard
Q11.
$The intensity of a plane electromagnetic wave is I. The radiation pressure exerted by this wave on a perfectly reflecting surface at normal incidence is:$
Hard
Q12.
$An electromagnetic wave is propagating in a medium with permittivity epsilon and permeability mu. The speed of the wave in this medium is:$
Hard
Q13.
$In an electromagnetic wave, the ratio of the amplitude of the electric field to the amplitude of the magnetic field is equal to:$
Hard
Q14.
$A plane electromagnetic wave of frequency 50 MHz travels in free space along the positive x-direction. At a particular point and time, the electric field is 6.3$
Hard

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