1
AP EAPCET 2024 - 23th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
For plane electromagnetic waves propagating in the positive $z$-direction. The combination which gives the correct possible direction for $\mathbf{E}$ and $\mathbf{B}$ fields respectively is
A
$(-2 \hat{\mathbf{i}}-3 \hat{\mathbf{j}})$ and $(3 \hat{\mathbf{i}}-2 \hat{\mathbf{j}})$
B
$(3 \hat{i}+4 \hat{j})$ and $(4 \hat{i}-3 \hat{j})$
C
$(\hat{\mathbf{i}}-2 \hat{\mathbf{j}})$ and $(-2 \hat{\mathbf{i}}-\hat{\mathbf{j}})$
D
$(-2 \hat{\mathbf{i}}+3 \hat{\mathbf{j}})$ and $(\hat{\mathbf{i}}+2 \hat{\mathbf{j}})$
2
AP EAPCET 2024 - 23th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
Size of the antenna for a carrier wave of frequency 3 MHz is
A
75 m
B
50 m
C
2.5 m
D
25 m
3
AP EAPCET 2024 - 22th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
The radiation of energy $E$ falls normally on a perfectly reflecting surface. The momentum transferred to the surface is
A
$\frac{E}{C}$
B
$\frac{2 E}{c}$
C
$\frac{E}{c^2}$
D
$\frac{2 E}{c^2}$
4
AP EAPCET 2024 - 22th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The structure of solids is investigated by using
A
cosmic rays
B
$\beta$-rays
C
X-rays
D
$\boldsymbol{\gamma}$-rays
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