What is the modulation index of an over modulated wave - Vidyadip

MCQ

What is the modulation index of an over modulated wave

A
$1$
B
$Zero$
C
$< 1$
✓
$> 1$

✓

Answer

Correct option: D.

$> 1$

d
(d) When $m_a $ $> 1$ then carrier is said to be over modulated.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

When light of wavelength $\lambda $ is incident on an equilateral prism kept in its minimum deviation position, it is found that the angle of deviation equals the angle of the prism itself. The refractive index of the material of the prism for the wavelength $\lambda $ is, then

An $ac$ source of variable frequency $f$ is connected to an $LCR$ series circuit. Which one of the graphs in figure. represents the variation of current of current $I$ in the circuit with frequency $f$

Monochromatic radiation of wavelength $\lambda$ is incident on a hydrogen sample containing in ground state. Hydrogen atoms absorb the light and subsequently emit radiations of ten different wavelengths. The value of $\lambda$ is.....$nm$

The temperature of a gas is $-100^{\circ} C$ . To what temperature the gas should be heated so that the rms speed is increased by 5 times?

A sphere collides with another sphere of identical mass. After collision, the two spheres move. The collision is inelastic. Then the angle between the directions of the two spheres is

There are certain material developed in laboratories which have a negative refractive index. A ray incident from air (medium $1$) into such a medium (medium $2$) shall follow a path given by

A magnetic needle of magnetic moment $6.7 \times 10^{-2} $ $Am^2$ and moment of inertia $7.5 \times 10^{-6}$ $ kgm^2$ is performing simple harmonic oscillations in a magnetic field of $0.01\ T$. Time taken for $10$ complete oscillations is.....$s$

A tube of length $L$ is filled completely with an incompressible liquid of mass $M$ and closed at both the ends. The tube is then rotated in a horizontal plane about one of its ends with a uniform angular velocity $\omega $. The force exerted by the liquid at the other end is

A simple electric motor has an armature resistance of $1 \,\Omega$ and runs from a d.c. source of $12 \,V$. It draws a current of $2 \,A$ when unloaded. When a certain load is connected to it, its speed reduces by $10 \%$ of its initial value. The current drawn by the loaded motor is ......... $A$

A divergent lens will produce