Popular Questions
- Electromagnetic waves travel
- Electromagnetic spectrum comprises
- Out of the following options which one can be used to produce a propagating electromagnetic wave?
- In short wave communication, wave of which of the following frequencies will be reflected back by the ionospheric layer
- A signal of 5 kHz frequency is amplitude modulated on a carrier wave of frequency 2 MHz. The frequencies of the resultant signal i..
- AM is used for broadcasting because
- Amplitude modulation has
- An example of point to point mode of communication is
- The waves that are bent down by the ionosphere are
- The process of regaining of information from carrier wave at the receiver is termed as
- The step index fiber has a relative refractive index of 0.88% . What is the critical angle at the corecladding interface
- The characteristic impedance of a coaxial cable is of the order of
- In which frequency range, space waves are normally propagated
- If u1 and u2 are the refractive indices of the material of core and cladding of an optical fibre, then the loss of light due to i..
- Through which mode of propagation, the radio waves can be sent from one place to another
- A laser beam of pulse power
- The carrier frequency generated by a tank circuit containing 1 nF capacitor and 10 uH indicator is
- Broadcasting antennas are generally
- The motion of a particle is given by
- A particle starts S.H.M. from the mean position
- Two points are located at a distanceof 10m and 15m from the source of oscillation
- Two particles are executing simple harmonic motion of the same amplitude A and frequency w along with x-axis
- The equation of a simple harmonic wave is given by y=6 sin 2Ï€(2t-0.1x), where x and y in mm and t is in seconds
- The equation of S.H.M. is y = α sin
- A simple harmonic oscillator oscillates, with an amplitude A
- A simple harmonic oscillator has an amplitude α and time period T. The time required by it to travel from x = α to x = α/..
- This displacement of a particle along the x axis is given by
- Out of the following functions representing motion of a particle which represents SHM
- A particle moves in x-y plane according to rule
- The restoring force of SHM is maximum when particle
- A particle is executing simple harmonic motion with the a period of T second and amplitude α metre
- A simple harmonic motion is represented by F(t) = 10 sin (20 t+0.5) . The amplitude of the S.H.M. is
- Which of the following equations does not represent a simple harmonic motion
- In short wave communication, waves of which of the following frequencies will be
- A signal of 5 kHz frequency is amplitude modulated on a carrier wave of frequency 2 MHz. The frequencies of the resultant signal i..
- AM is used for broadcasting because
- Amplitude modulation has
- An example of point to point mode of communication is
- The wave that are bent down by the ionosphere are
- The Process of regaining of information from carrier wave at the receiver is termed as
