NEET Electromagnetic Waves questions
9 Physics questions on Electromagnetic Waves as asked in NEET, newest first.
- The electric field in a plane electromagnetic wave is given by E_z = 60 cos (5x + 1.5 × 10^9 t) V/m. Then expression for the corresponding magnetic field is (here subscripts denote the direction of the field) :
2025
- A parallel plate capacitor made of circular plates is being charged such that the surface charge density on its plates is increasing at a constant rate with time. The magnetic field arising due to displacement current…
2025
- The property which is not of an electromagnetic wave travelling in free space is that:
2024
- In a plane electromagnetic wave travelling in free space, the electric field component oscillates sinusoidally at a frequency of 2.0 × 10^10 Hz and amplitude 48 V m^-1. Then the amplitude of oscillating magnetic field…
2023
- Match List-I with List-II List-I (Electromagnetic waves) List-II (Wavelength) (a) AM radio waves (i) 10^-10 m (b) Microwaves (ii) 10^2 m (c) Infrared radiations (iii) 10^-2 m (d) X-rays (iv) 10^-4 m Choose the correct…
2022
- The energy that will be ideally radiated by a 100 kW transmitter in 1 hour is
2022
- When light propagates through a material medium of relative permittivity ε_r and relative permeability mu_r, the velocity of light, v is given by (c - velocity of light in vacuum)
2022
- Light with an average flux of 20 W/cm^2 falls on a non-reflecting surface at normal incidence having surface area 20 cm^2. The energy received by the surface during time span of 1 minute is :
2020
- The ratio of contributions made by the electric field and magnetic field components to the intensity of an electromagnetic wave is : (c = speed of electromagnetic waves)
2020
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