KCET · Physics · Electromagnetic Waves
The source of electromagnetic wave can be a charge
- A moving with a constant velocity
- B moving in a circular orbit
- C at rest
- D moving parallel to the magnetic field
Answer & Solution
Correct Answer
(B) moving in a circular orbit
Step-by-step Solution
Detailed explanation
Electromagnetic waves are produced by accelerated charges. In given options, only a charge particle moving in a circular orbit is in accelerated motion. So, it produces electromagnetic wave.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- Two cells of emf \( E_{1} \) and \( E_{2} \) are joined in opposition (such that \( E_{1}>E_{2} \) ). If \( r_{1} \) and \( r_{2} \) be the internal resistance and \( R \) be the external resistance, then the terminal potential difference is
KCET 2015 Hard - When a compact disc(CD) is illuminated by small source of white light coloured bands are observed. This is due toKCET 2022 Easy
- The speed of light in media \(M_{1}\) and \(M_{2}\) are \(1.5 \times 10^{8} \mathrm{~ms}^{-1}\) and \(2 \times 10^{8} \mathrm{~ms}^{-1}\) respectively. A ray travels from medium \(M_{1}\) to the medium \(M_{2}\) with an angle of incidence \(\theta\). The ray suffers total internal reflection. Then the value of the angle of incidence \(\theta\) isKCET 2013 Medium
- A particle of charge \(e\) and mass \(m\) moves with a velocity \(v\) in a magnetic field \(B\) applied perpendicular to the motion of the particle. The radius \(r\) of its path in the field isKCET 2011 Easy
- A uniform electric field in the plane of the paper as shown. Here \(A, B, C\) and \(D\) are the ponits on the circle. \(V_{1}, V_{2}, V_{3}\) and \(V_{4}\) are the potentials at those points respectively. Then
KCET 2013 Easy - A neutron, a proton, an electron and an \(\alpha\)-particle enter a region of uniform magnetic field with the same velocities. The magnetic field is perpendicular and directed into the plane of the paper. The tracks of the particles are labelled in the figure. The electron follows the track.
KCET 2011 Easy
More PYQs from KCET
- The orbital nearest to the nucleus isKCET 2018 Easy
- The number of solutions for the equation \(\sin 2 x+\cos 4 x=2\) isKCET 2008 Easy
- The area of the region bounded by the curve \(y^{2}=8 x\) and the line \(y=2 x\) isKCET 2020 Medium
- Which of the following nitrogen bases is found only in DNA?KCET 2019 Easy
- A block kept on a rough surface starts sliding when the inclination of the surface is \(\theta\) with respect to the horizontal. The coefficient of static friction between the block and the surface isKCET 2012 Medium
- The colour code for a carbon resistor of resistance \(0.2 \mathrm{k} \Omega \pm 10 \%\) isKCET 2020 Easy