1
TG EAPCET 2025 (Online) 4th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

If the frequencies of the carrier wave and message signal are 1 MHz and 28 kHz respectively, then the frequencies of the side bands are

A

$1014 \mathrm{kHz}, 986 \mathrm{kHz}$

B

$1028 \mathrm{kHz}, 972 \mathrm{kHz}$

C

$29 \mathrm{kHz}, 27 \mathrm{kHz}$

D

$514 \mathrm{kHz}, 486 \mathrm{kHz}$

2
TG EAPCET 2025 (Online) 4th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The radio horizon of a transmitting antenna of height 39.2 m is (Radius of the Earth $=6400 \mathrm{~km}$ )

A

44.8 km

B

19.6 km

C

22.4 km

D

78.4 km

3
TG EAPCET 2025 (Online) 3rd May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The layer of the atmosphere which efficiently reflects high frequency waves particularly at night is

A

troposphere

B

stratosphere

C

mesosphere

D

thermosphere

4
TG EAPCET 2025 (Online) 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

When the receiving antenna is on the ground, the range of a transmitting antenna of height 980 m is (Radius of the Earth $=6400 \mathrm{~km}$ )

A

56 km

B

112 km

C

72.4 km

D

224 km

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