AP EAMCET · PHYSICS · Communication System
In an amplitude modulation with modulation index 0.5, the ratio of the amplitude of the carrier wave to that of the side band in the modulated wave is
- A 4 : 1
- B 1 : 4
- C 1 : 2
- D 2 : 1
Answer & Solution
Correct Answer
(A) 4 : 1
Step-by-step Solution
Detailed explanation
Modulation index, \(\mu=0.5=\frac{1}{2}\) \(\frac{A_{S B}}{A_C}=\frac{\mu}{2}=\frac{1}{4}\) or \(\frac{A_C}{A_{S B}}=\frac{4}{1} \text { or } 4: 1\)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from PHYSICS
- A thin hollow sphere of mass \(m\) is completely filled with a liquid of mass \(m\). When the sphere rolls with a velocity \(v\), kinetic energy of the system is (neglect friction)AP EAMCET 2011 Easy
- The pressure and density of a given mass of a diatomic gas \(\left(\gamma=\frac{7}{5}\right)\) change adiabatically from \((P, d)\) to \(\left(P^{\prime}, d^{\prime}\right)\). If \(\frac{d^{\prime}}{d}=32\), then \(\frac{P^{\prime}}{P}\) is ( \(\gamma=\) ratio of specific heats \()\)AP EAMCET 2004 Medium
- Along the \(x\)-axis, three charges \(\frac{q}{2},-q\) and \(\frac{q}{2}\) are placed at \(x=0, x=a\) and \(x=2 a\) respectively. The resultant electric potential at a point \(P\) located at a distance \(r\) from the charge \(-q(a < r)\) is \(\left(\varepsilon_0\right.\) is the permittivity of free space)AP EAMCET 2007 Hard
- When photons of energy \(8 \times 10^{-19} \mathrm{~J}\) incident on a photosensitive material, the de Broglie wavelength of the photoelectrons emitted with maximum kinetic energy is \(10 Å\). The work function of the photosensitive material is nearlyAP EAMCET 2025 Medium
- The de Broglie wavelength of the most energetic photoelectrons emitted from a photosensitive metal of work function \(\phi\), when light frequency \(v\) incidents on it is \(\lambda\). Then \(\mathrm{v}=\) ( \(\mathrm{h}\) - Planck's constant, \(\mathrm{m}\) - mass of electron)AP EAMCET 2023 Medium
- The minimum horizontal speed with which a body must be projected, so that it goes around a smooth vertical circular track of radius \(4 \mathrm{~m}\) is \(\left(g=9.8 \mathrm{~ms}^{-2}\right)\)AP EAMCET 2020 Easy
More PYQs from AP EAMCET
- The marks obtained by students and in examinations are given below
The ratio of the coefficient of variation of marks of and the coefficient of variation of marks of isMarks of Marks of AP EAMCET 2018 Easy - If \(z=x+i y\) and if the point \(\mathrm{P}\) in the Argand plane represents \(z\), then the locus of \(\mathrm{P}\) satisfying the equation \(|z-3 i|+|z+3 i|=10\) isAP EAMCET 2017 Hard
- A transformer works on the principle ofAP EAMCET 2020 Easy
- The line \(x+y=1\) meets the lines represented by the equation \(y^3-6 x y^2+11 x^2 y-6 x^3=0\) at the points \(P, Q, R\). If \(O\) is the origin, then \((O P)^2+(O Q)^2+(O R)^2=\)AP EAMCET 2020 Medium
- An electron is moving with a velocity \((2 \bar{i}+3 \bar{j}) \mathrm{ms}^{-1}\) in an electric field \((3 \bar{i}+6 \bar{j}+2 \bar{k}) \mathrm{Vs}^{-1}\) and a magnetic field of \((2 \bar{j}+3 \bar{k}) \mathrm{T}\). Then the magnitude and direction (with \(x\)-axis) of the Lorentz force acting on the electron isAP EAMCET 2024 Medium
- \(\lim _{x \rightarrow 3} \frac{x^3-27}{x^2-9}=\)AP EAMCET 2024 Easy