MCQ
A 500 Hz modulating voltage fed into an FM generator produces a frequency deviation of 2.25 kHz. If amplitude of the voltage is kept constant but frequency is raised to 6 kHz then the new deviation will be
  • A
    4.5 kHz
  •  54 kHz
  • C
     27 kHz
  • D
     15 kHz

Answer

Correct option: B.
 54 kHz
54 kHz

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

Range of wavelength of X-rays is:
Consider a sphere of radius $\mathrm{R}$ which carries a uniform charge density $\rho .$ If a sphere of radius $\frac{\mathrm{R}}{2}$ is carved out of it, as shown, the ratio $\frac{\left|\overrightarrow{\mathrm{E}}_{\mathrm{A}}\right|}{\left|\overrightarrow{\mathrm{E}}_{\mathrm{B}}\right|}$ of magnitude of electric field $\overrightarrow{\mathrm{E}}_{\mathrm{A}}$ and $\overrightarrow{\mathrm{E}}_{\mathrm{B}}$ respectively, at points $\mathrm{A}$ and $\mathrm{B}$ due to the remaining portion is
In the adjoining circuit, the battery $E_1$ has an e.m.f of 12 volt and zero internal resistance while the battery E has an e.m.f of 2 volt. If the galvanometer G reads zero, then the value of the resistance X in ohm is
Match List $I$ with List $II$ of Electromagnetic waves with corresponding wavelength range :

List $I$ List $II$
$(A)$ Microwave $(I)$ $400\,nm$ to $1\,nm$
$(B)$ Ultraviolet $(II)$ $1\,nm$ to $10^{-3}\,nm$
$(C)$ $X-$Ray $(III)$ $1\,mn$ to $700\,nm$
$(D)$ Infra-red $(IV)$ $0.1\,m$ to $1\,mm$

Choose the correct answer from the options given below:

A battery consists of a variable number '$n$' of identical cells having internal resistances connected in series. The terminals of battery are short circuited and the current $i$ is measured. Which of the graph below shows the relation ship between $i$ and $n$
An ammeter of 5 ohm resistance can read 5 mA. If it is to be used to read 100 volts, how much resistance is to be connected in series
The minimum energy required to excite a hydrogen atom from its ground state is.....$ eV$
Time taken by the sunlight to pass through a window of thickness 4 mm whose refractive index is 1.5 is
A parallel beam of light is incident on a converging lens parallel to its principal axis. As one moves away from the lens on the other side on its principal axis, the intensity of light:
Vibration magnetometer before use, should be set