Electromagnetic Waves: The Exact Questions RBSE Keeps Asking (Chapter 8)

If you have gone through the last decade of RBSE Class 12 Physics papers, you will notice Chapter 8 (Electromagnetic Waves) is tested every year without fail. It belongs to Unit V — Electromagnetic Waves and is drawn from a pool of 20 previous-year questions spanning 2013–2026, spread across MCQs, very short, short and long-answer sections. The topics rotate, but the question patterns stay remarkably steady.

Expect a quick 1-mark opener on Maxwell's equations, the E–B phase relationship, or naming the EM wave used in a device. The 2-mark questions lean on numericals relating the electric and magnetic field amplitudes using the speed of light. This is a compact, short-chapter unit — none of its 20 questions demand a very-long derivation, so the short-answer repeats below are where most of the marks live.

So the smart way to revise this chapter is not to read it end to end, but to practise the questions RBSE actually repeats. The five questions above — and the ten in the free sample PDF — are taken straight from real board papers and tagged with the exact years they appeared, so you can see for yourself what the full RBSE Physics chapterwise PYQ book offers before you decide to buy it.