NEET Physics Kotaby Prashant Sir

Electromagnetic Waves for NEET

Class 12 · What NEET asks, the NCERT lines it repeats, and where to study it free

Electromagnetic Waves in NEET: the numbers

49NEET / AIPMT questions in our PYQ bank (1989–2026)
31exam years with a question from this chapter
5NCERT lines NEET asked more than once

Topics NEET asks most

TopicQuestions
EM waves and the electromagnetic spectrum 45
Displacement current 4

NCERT lines NEET asked again and again

Read these lines from your NCERT book twice: NEET has built questions on each of them more than once.

A charging capacitor has no charge crossing its gap, yet the gap carries displacement current equal to the wire current , found from i_d = C dV/dt.
NEET 2016NEET 2019NEET 2025
E and B are perpendicular to each other and to the direction of travel , in phase, with E × B along the wave.
AIPMT 2010NEET 2018NEET 2021
In free space the peak fields obey E₀ = cB₀ . For rms or peak conversions remember E₀ = √2 Eᵣₘₛ.
NEET 2017NEET 2022NEET 2024
Speed in a medium is v = c/√μᵣεᵣ . The frequency stays fixed , so the wavelength shrinks by the same factor.
NEET 2013NEET 2019NEET 2022
From radio to gamma the wavelength falls while frequency and photon energy rise. Gamma rays have the smallest wavelength, radio the largest.
AIPMT 2000AIPMT 2011NEET 2024

Free lecture by Prashant Sir

Semiconductors, Logic Gates & EM Wave | NEET Physics Crash Course |All Concepts, Tricks & PYQs · 54,067 views on YouTube

Free NCERT notes for Electromagnetic Waves

How Maxwell's displacement current links changing E and B fields, why that gives a self-travelling EM wave, and the full spectrum from radio to gamma rays. A short, high-scoring chapter: NEET usually asks 1-2 direct questions on E₀/B₀ = c, displacement current, energy and momentum of the wave, or the order and uses of the bands.

Read the chapter notes: key NCERT points, graphs, every formula with its meaning, tricks, common mistakes and NEET traps.

FAQ

How many questions come from Electromagnetic Waves in NEET?

Our bank of NEET and AIPMT papers (1989–2026) has 49 questions from Electromagnetic Waves, most of them from EM waves and the electromagnetic spectrum, Displacement current.

Which NCERT line of Electromagnetic Waves has NEET asked the most?

This line has been asked 3 times in NEET/AIPMT: "A charging capacitor has no charge crossing its gap, yet the gap carries displacement current equal to the wire current, found from i_d = C dV/dt."

Where can I study Electromagnetic Waves for NEET for free?

Prashant Sir's full lecture is free on the NEET Physics Kota YouTube channel, and the chapter notes are free on Dhruv.