Given below are two statements: Statement I : Electromagnetic wav… - Vidyadip

MCQ

Given below are two statements:

Statement $I$ : Electromagnetic waves are not deflected by electric and magnetic field.

Statement $II$ : The amplitude of electric field and the magnetic field in electromagnetic waves are related to each other as $E _0=\sqrt{\frac{\mu_0}{\varepsilon_0}} B_0$

In the light of the above statements, choose the correct answer from the options given below:

✓
Statement $I$ is true but statement $II$ is false
B
Both Statement $I$ and Statement $II$ are true
C
Statement $I$ is false but statement $II$ is true.
D
Both Statement $I$ and Statement $II$ are false.

✓

Answer

Correct option: A.

Statement $I$ is true but statement $II$ is false

a
Statement$-I$ is correct as $EMW$ are neutral.

Statement$-II$ is wrong.

$E _0=\sqrt{\frac{1}{\mu_0 \varepsilon_0}} B _0$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

JEE STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

In an experiment, set up $A$ consists of two parallel wires which carry currents in opposite directions as shown in the figure. $A$ second set up $B$ is identical to set up $A$, except that there is a metal plate between the wires. Let $F_A$ and $F_B$ be the magnitude of the force between the two wires in setup $A$ and setup $B$, respectively.

Let $\rho (r) =\frac{Q}{{\pi {R^4}}}r$ be the charge density distribution for a solid sphere of radius $R$ and total charge $Q$. For a point '$p$' inside the sphere at distance $r_1$ from the centre of the sphere, the magnitude of electric field is

In stretching a spring by $2\,cm$ energy stored is given by $U,$ then more stretching by $10\,cm$ energy stored will be

$12$ signals each band limited to $5\, kHz$ are to be transmitted by frequency-division multiplexer. If $AM-SSB$ modulation guard band of $1\, kHz$ is used then the bandwidth of multiplexed signal is.......$ kHz$

A bullet moving with a speed of $100$ $m{s^{ - 1}}$can just penetrate two planks of equal thickness. Then the number of such planks penetrated by the same bullet when the speed is doubled will be

If Young's modulus for a material is zero, then the state of material should be

Four monochromatic and coherent sources of light, emitting waves in phase of wavelength $\lambda$ , are placed at the points $\rightarrow x = 0, d, 2d$ and $3d$ on the $x$ -axis. the intensity of the waves reaching a point $P$ far away on the $+x$ axis from each of the four sources is almost the same, and equal to $I_0$. Then,

Two rings of radius $R$ and $nR$ having different masses and made up of same wire have the ratio of moment of inertia about an axis passing through centre as $1 : 8$. The value of $n$ is

Take the mean distance of the moon and the sun from the earth to be $0.4 \times 10^6\,km$ and $150 \times 10^6\,km$ respectively. Their masses are $8 \times 10^{22}\, kg$ and $2 \times 10^{30}\, kg$ respectively. The radius of the earth is $6400\, km$. Let $\Delta {F_1}$ be the difference in the forces exerted by the moon at the nearest and farthest points on the earth and $\Delta {F_2}$ be the difference in the force exerted by the sun at the nearest and farthest points on the earth. Then, the number closest to $\frac{{\Delta {F_1}}}{{\Delta {F_2}}}$ is

A cricketer can throw a ball to a maximum horizontal distance of $100\, m$. The speed with which he throws the ball is ......... $ms^{-1}$ (to the nearest integer)