Electromagnetic Waves questions
212 published questions with worked solutions.
- Given below are two statements: Statement I : Electromagnetic waves are not deflected by electric and magnetic field. Statement...
- Match List I with List II: List-I: (A) Microwaves (B) UV rays (C) Infra-red light (D) X-ray List-II: (I) Physiotherapy (II)...
- If a source of electromagnetic radiation having power 15kW produces 10^ 16 photons per second, the radiation belongs to a part of...
- In a medium the speed of light wave decreases to 0.2 times to its speed in free space. The ratio of relative permittivity to the...
- A cube of unit volume contains 35 10^7 photons of frequency 10^ 15 Hz. If the energy of all the photons is viewed as the average...
- Which of the following are not electromagnetic waves?
- Which of the following radiations has the least wavelength?
- An electromagnetic wave of frequency v = 3.0MHz passes from vacuum into a dielectric medium with permittivity = 4.0. Then
- The rms value of the electric field of the light coming from the Sun is 720 N/C. The average total energy density of the...
- If a source of power 4 kW produces 10^ 20 photons/second, the radiation belong to a part of the spectrum called
- Heat radiations cannot exhibit the following phenomenon. That is
- Heat radiation have wavelengths in the region of
- We do not use spectrometer of visible light to study the spectral distribution of radiation of blackbody because
- Which one of the following statements is NOT the property of light? [MHT-CET 2022]
- The electric field part of an electromagnetic wave in a medium is represented by E_x = 0; E_y = 2.5 N C [ (2 10^ 6 rad s )t - (...
- Light has the following wave property. It is
- The nature of visible light waves is similar to
- Maxwell's Electromagnetic theory of light suggests that light consists of oscillations of:
- Propagation of light is correctly described in the form of
- In vacuum speed of light depends upon
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