15. Electron microscope works on which of the following principles?

[A] Optical interference
[B] Wave Nature of electrons
[C] Motion of charged particle in electromagnetic fields
[D] Faraday’s law of Electromagnetic induction

Which one of the following laws of electromagnetism does not give the direction of magnetic field?
1) Right-hand thumb rule
2) Fleming's left-hand rule
3) Fleming's right-hand rule
4) Faraday's law of electromagnetic induction

As per faraday’s law of electromagnetic induction, an EMF is induced in a conductor whenever it__

Which of the following best describe the electromagnetic induction?