1
KCET 2019
MCQ (Single Correct Answer)
+1
-0

An electromagnetic wave is travelling in $$x$$-direction with electric field vector given by, $$\mathbf{E}_y=E_0 \sin (k x-\omega t) \hat{\mathbf{j}}$$. The correct expression for magnetic field vector is

A
$$\mathbf{B}_y=E_0 C \sin (k x-\omega t) \hat{\mathbf{j}}$$
B
$$\mathbf{B}_z=E_0 C \sin (k x-\omega t) \hat{\mathbf{k}}$$
C
$$\mathbf{B}_y=\frac{E_0}{C} \sin (k x-\omega t) \hat{\mathbf{j}}$$
D
$$\mathbf{B}_z=\frac{E_0}{C} \sin (k x-\omega t) \hat{\mathbf{k}}$$
2
KCET 2019
MCQ (Single Correct Answer)
+1
-0

The phenomenon involved in the reflection of radio-waves by ionosphere is similar to

A
reflection of light by plane mirror
B
total internal reflection of light in air during a mirage
C
dispersion of light by water molecules during the formation
D
scattering of light by air particles
3
KCET 2017
MCQ (Single Correct Answer)
+1
-0
If $\mathbf{E}$ and $\mathbf{B}$ represent electric and magnetic field vectors of an electromagentic wave, the direction of propagation of the wave is along
A
$\mathbf{E} \times \mathbf{B}$
B
$\mathbf{B} \times \mathrm{E}$
C
E
D
$\mathbf{B}$
KCET Subjects
EXAM MAP