Question:medium

The VSWR can have any value between :

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Important VSWR values: \[ VSWR=1 \Rightarrow \text{Perfect matching} \] \[ VSWR\rightarrow \infty \Rightarrow \text{Total reflection} \]

Updated On: May 22, 2026

\(0 \text{ to } 1\)
\(-1 \text{ to } +1\)
\(0 \text{ to } \infty\)
\(1 \text{ to } \infty\)

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The Correct Option is D

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The percentage of the total power carried by the sidebands of the AM wave for tone modulation when the modulation index is 0.3 is:
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Match List-I with List-II:

List-I (Modulation Schemes)	List-II (Wave Expressions)
(A) Amplitude Modulation	(I) \( x(t) = A\cos(\omega_c t + k m(t)) \)
(B) Phase Modulation	(II) \( x(t) = A\cos(\omega_c t + k \int m(t)dt) \)
(C) Frequency Modulation	(III) \( x(t) = A + m(t)\cos(\omega_c t) \)
(D) DSB-SC Modulation	(IV) \( x(t) = m(t)\cos(\omega_c t) \)

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