Home
Class 12
PHYSICS
Statement-1 : In an e.m. wave magnitude ...

Statement-1 : In an e.m. wave magnitude of magnetic field vector `vec B` is much smaller than the magnitude of vector `vecE`
Statement-2 : this is because in and e.m. wave `E//B=c=3xx10^(8) m//s`.

A

Statement-1 is true, statement-2, is true, statement-2 is a correct explanation for statement -1

B

statement -1 is true, statement -2 is true, statement -2 is NOT a correct explanation for statement -1

C

statement-1 is true , statement-2 is false

D

statement-1 is false, statement-2 is true

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTRO MAGNETIC WAVES

    RESONANCE|Exercise Exercise 3|27 Videos

  • ELECTRO MAGNETIC WAVES

    RESONANCE|Exercise Exercise|46 Videos

  • DAILY PRACTICE PROBLEM

    RESONANCE|Exercise DPP.No.71|1 Videos

  • ELECTRODYNAMICS

    RESONANCE|Exercise Advanced level problems|31 Videos

Similar Questions

Explore conceptually related problems

Statement-1: In an em wave, the direction of the magnetic field induction vecB is parallel to the electric field vecE . Statement-2: Electric field vecE and magnetic field vector vecB , have the same frequency.

The rate of change of magnetic flux linked with the coil is equal to the magnitude of induced e.m.f.' this is the statement of

A : In an EM wave the magnitude of the electric field vector is more than the magnitude of the magnetic field vector. R : Energy of the EM wave is shared equally between the electric and magnetic fields.

Out of electric field vector, vec(E) and magnetic field vector, vec(B) in an electromagnetic wave, which is more effective and why ?

Which field vactor is used to represent the polarisation of an e.m. wave ?

(1) In free space at a pont magnitude of electric field vector (vecE) is 9.3 V//m . Find the magnitude of magnetic field vector (vecB) at the point (2). Out of ultraviolet infrared and X-rays whose wavelength is maximum ?

In an e.m. wave the electric and magnetic fields are 200V//m and 0.365A//m . The maximum rate of energy flow is

In a wave E_(0)=100Vm^(-1) . Find the magnitude of Poynting's vector is watt m^(-2) .

If u_E,u_m are the energy density of e.m. wave due to electric and magnetic field vectors, E_(rms) , B_(rms) are the rms value of electric and magnetic field vectors in e.m. wave, then the total energy density of a sinusoidaly e.m wave is