Contribute & Test Your Skills
- Unit, Dimension & Measurement
- Motion In One Dimension
- Thermodynamics
- Work, Energy & Power
- Rotational Motion
- Gravitation
- Laws of Motion
- Properties of Solids & Liquids
- Electronic Devices
- Kinetic Theory of Gases
- Wave Motion
- Communication Systems
- Current Electricity & Heating Effect
- Magnetic Effects of Current & Magnetism
- Electromagnetic Induction & Alternating Currents
- Electromagnetic Waves
- Optics Photometry
- Transmission of Heat
- Electrostatics
- Atomic Structure
- Mechanical Properties of Fluids
- Thermal Properties of Matter
- Circular Motion
- Projectile Motion
- Friction
- Properties of Bulk Matter
- Surface Tension
- Simple Harmonic Motion
- Capacitor
- Alternating Current
- Electron, Photon & X-Ray
- Nuclear Physics
- Valve Electronics
- Optical Instrument
- Reflection of Light
- Refraction of Light
- Wave Optics
- Mathematics In Physics
Popular Questions
- An expression for the magnetic field strength B at the point between the capacitor plates indicates in Fig. Express B in terms of ..
- A plane electromagnetic wave is incident on a material surface. If the wave delivers momentum p and energy E, then
- SAT Test Centers in Japan (Tokyo or Gunma)
- Maxwell’s modified form of Ampere’s circuital law is
- A signal of 5 kHz frequency is amplitude modulated on a carrier wave of frequency 2 MHz. The frequencies of the resultant signal i..
- Broadcasting antennas are generally
- A laser is a coherent source because it contains
- The speed of electromagnetic waves in vacuum depends upon the source of radiation. It
- 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..
- Electromagnetic waves are transverse in nature as is evident by
- Maximum Usable frequency (MUF) in F - region layer is
- The ratio waves of frequency 300MHz to 3000MHz belong to
- during the propagation of electromagnets waves in a medium:
- The process of regaining of information from carrier wave at the receiver is termed as
- For television broadcasting, the frequency employed is normally
- Laser beams are used to measure long distances because
- Choose the correct statement
- The characteristic impedance of a coaxial cable is of the order of
- An example of point to point mode of communication is
- A laser beam is used for carrying out surgery because it
- Which of the following shows greenhouse effect?
- Amplitude modulation has
- The waves that are bent down by the ionosphere are
- The carrier frequency generated by a tank circuit containing 1 nF capacitor and 10 uH indicator is
- an antenna behaves as resonant circuit only when its length is
- The wavelength of x-rays is of the order of
- Consider telecommunication through optical fibres. which of the following
- The electromagnetic waves of frequency 2 MHz to 30mhz are used
- this question has statement 1, and statement 2. of the four choice, given the statement
- a real LED emits light at 0.1 watt uniformly around it. the amplitude
- A laser beam of pulse power
- AM is used for broadcasting because
- The attenuation in optical fiber is mainly due to
- In which frequency range, space waves are normally propagated
- A point source of electromagnetic radiation has an average power output of 1500 W. The maximum value of electric field at a distan..
- Through which mode of propagation, the radio waves can be sent from one place to another
- A charged particle oscillates about its mean equilibrium position with a frequency of 10^9 Hz. Frequency of the electromagnetic wa..
- Which of the following is absorbed by the ozone layer?
- A plane electromagnetic wave of frequency 20 MHz travels through a space along x-direction. If the electric field vector at a cert..
- A plane electromagnetic wave of frequency 20 MHz travels through a space along x-direction. If the electric field vector at a cert..
