1
AIIMS 2019
MCQ (Single Correct Answer)
+1
-0.33

If modulation index, $$\mu=\frac{1}{2}$$ and $$V_m=2$$, then $$V_C$$ is

A
4
B
2
C
6
D
8
2
AIIMS 2019
MCQ (Single Correct Answer)
+1
-0.33

Assertion : In ionospheric reflection, phase change does not occur with the radio wave.

Reason : The ionosphere reflection is similar to the total internal reflection in miraj.

A
If both assertion and reason are true and reason is the correct explanation of assertion.
B
If both assertion and reason are true, but reason is not the correct explanation of assertion.
C
If assertion is true, but reason is false.
D
If both assertion and reason are false.
3
AIIMS 2019
MCQ (Single Correct Answer)
+1
-0.33

Assertion : Amplitude modulation shows more interference than frequency modulation with noise.

Reason : Interference is function of amplitude of modulation wave with carrier-wave.

A
If both assertion and reason are true and reason is the correct explanation of assertion.
B
If both assertion and reason are true, but reason is not the correct explanation of assertion.
C
If assertion is true, but reason is false.
D
If both assertion and reason are false.
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