1
AP EAPCET 2022 - 4th July Morning Shift
+1
-0

If the average power per unit area delivered by an electromagnetic wave is $$9240 \mathrm{~Wm}^{-2}$$. then the amplitude of the oscillating magnetic field in EM wave is

A
$$4.4 ~\mu \mathrm{T}$$
B
$$6.6 ~\mu \mathrm{T}$$
C
$$8.8~ \mu \mathrm{T}$$
D
$$102 ~\mu \mathrm{T}$$
2
AP EAPCET 2022 - 4th July Morning Shift
+1
-0

A beam of light with intensity $$10^{-3} \mathrm{~Nm}^{-2}$$ and cross-sectional area $$20 \mathrm{~cm}^2$$ is incident on a fully reflective surface at angle $$45^{\circ}$$. Then, the force exerted by the beam on the surface is

A
$$2.3 \times 10^{-15} \mathrm{~N}$$
B
$$1.33 \times 10^{-14} \mathrm{~N}$$
C
$$6.67 \times 10^{-15} \mathrm{~N}$$
D
$$9.4 \times 10^{-15} \mathrm{~N}$$
3
AP EAPCET 2022 - 4th July Morning Shift
+1
-0

The maximum number of TV signals, that can be transmitted along a co-axial cable is

A
100
B
125
C
140
D
90
4
AP EAPCET 2021 - 20th August Morning Shift
+1
-0

The electric and the magnetic fields associated with an electromagnetic wave propagating along the $$z$$-axis, can be represented by

A
$$\left[\mathrm{E}=E_0 \hat{\mathrm{i}}, \mathrm{B}=B_0 \hat{\mathrm{j}}\right]$$
B
$$\left[\mathrm{E}=E_0 \hat{\mathrm{k}}, \mathrm{B}=B_0 \hat{\mathrm{i}}\right]$$
C
$$\left[\mathrm{E}=E_0 \hat{\mathrm{j}}, \mathrm{B}=B_0 \hat{\mathrm{i}}\right]$$
D
$$\left[\mathrm{E}=E_0 \hat{\mathrm{j}}, \mathrm{B}=B_0 \hat{\mathrm{k}}\right]$$
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