1
BITSAT 2023
MCQ (Single Correct Answer)
+3
-1

The electric and the magnetic field associated with an E.M. wave, propagating along the $$\mathrm{Z}$$-axis can be represented by

A
$$\left(\mathbf{E}=E_0 \hat{\mathbf{i}}, \mathbf{B}=B_0 \hat{\mathbf{j}}\right)$$
B
$$\left(\mathbf{E}=E_0 \hat{k}, \mathbf{B}=B_0 \hat{\mathbf{i}}\right)$$
C
$$\left(\mathbf{E}=E_0 \hat{\mathbf{j}}, \mathbf{B}=B_0 \hat{\mathbf{i}}\right)$$
D
$$\left(\mathrm{E}=E_0 \hat{\mathrm{j}}, \mathrm{B}=B_0 \hat{\mathrm{k}}\right)$$
2
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

An electromagnetic wave is propagating along X-axis. At x = 1 cm and t = 18s, its electric vector |E| = 8 V/m, then the magnitude of its magnetic vector is

A
2.66 $$\times$$ 10$$-$$8
B
3 $$\times$$ 10$$-$$7
C
3.14 $$\times$$ 10$$-$$8
D
3.16 $$\times$$ 10$$-$$7
3
BITSAT 2021
MCQ (Single Correct Answer)
+3
-1

Choose the correct statement.

A
The speed of light in the meta-material is $$v = c|n|$$.
B
The speed of light in the meta-material is $$v = {c \over {|n|}}$$.
C
The speed of light in the meta-material is v = c.
D
The wavelength of the light in the meta-material ($$\lambda$$m) is given by $$\lambda$$m = $$\lambda$$air | n |.
4
BITSAT 2020
MCQ (Single Correct Answer)
+3
-1

The magnetic field of a beam emerging from a fitter facing a flood light is given by

B = 10 $$\times$$ 10$$-$$8 sin(1 $$\times$$ 107z $$-$$ 3.6 $$\times$$ 1015t)T. The average intensity of the beam is

A
1.82 W/m2
B
1.19 W/m2
C
1.18 W/m2
D
1.17 W/m2
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