MCQ
A wave is represented as $e = 10\sin ({10^8}t + 6\sin 1250t)$ then the modulating index is
  • A
    $10$
  • B
    $1250$
  • C
    $108$
  • $6$

Answer

Correct option: D.
$6$
d
(d) Comparing with standard equation.

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

Similar questions

The n rows each containing m cells in series are joined in parallel. Maximum current is taken from this combination across an external resistance of 3W resistance. If the total number of cells used are 24 and internal resistance of each cell is 0.5 W then
Which of the nine planets is nearest to sun
The radius of curvature of the curved surface of a plano$-$convex lens is $20\ cm$. If the refractive index of the material of the lens be $1.5,$ it will.
If the refractive index of denser medium 1 relative to rare medium 2 is $n_{12}$ and the critical angle for the pair of these mediums is $i_{ c }$, then the relationship between $n _{12}$ and $i_c$ is :
An electron experiences a force equal to its weight when placed in an electric field. The intensity of the field will be
A proton (mass $m$ and charge $+e$) and an $\alpha - $particle (mass $4m$ and charge $+2e$) are projected with the same kinetic energy at right angles to the uniform magnetic field. Which one of the following statements will be true
Which of the following is used in optical fibers?
A freshly prepared radioactive sample of half- life 1 hour emits radiations that are 128 times as intense as the permissible safe limit. The minimum time after which this sample can be safely used is
Which wavelength of sun is used finally as electric energy ?
The flat bottom of cylinder tank is silvered and water $(\mu = 4/3)$ is filled in the tank upto a height $h$ .$A$ small bird is hovering at a height $3h$ from the bottom of the tank. When a small hole is opened near the bottom of the tank, the water level falls at the rate of $1\, cm/s$. The bird will perceive that his image's velocity is :