Doubtclip is an AI tutor that turns any homework or exam doubt into a step-by-step whiteboard video lesson with diagrams, formulas, and voice explanation.

Which subjects and exams does it support?

It supports Physics, Chemistry, Mathematics/Calculus and related STEM doubts for school boards, JEE, NEET, and global high-school / undergrad practice.

How do I get a video solution?

Upload a photo of the question or paste the text, sign in, and Doubtclip generates a whiteboard-style explanation video you can watch and share.

Is Doubtclip available worldwide?

Yes. Doubtclip is a web app for students globally. Lessons are available in English and Hinglish.

Electromagnetic Waves

JEE Main level, single correct, medium

149 of 165

Question 149 of 165

Microwave oven acts on the principle of:

Show answer and solution

Answer: (C) giving vibrational energy to water molecules

The food having more content of water cooks faster in the microwave oven. Energy of microwaves lie in the range of vibration energy of water molecules.

JEE Main question paper PDF

Open a shift to read the full paper on this page, or download it.

JEE Main 2025 Apr 2 Shift 1 question paper

Open Download PDF

Opening paper…

Explain it as a whiteboard videoStep-by-step, in Hinglish or English. Your first video needs no login.Solved it on paper but got it wrong?Upload a photo of your working. Mistake Doctor marks the exact line that broke.

More Physics practice

Electromagnetic WavesIn an EM wave propagating in vacuum, the amplitude of electric field is $E_0 = 60\,\text{V/m}$ . The amplitude of magnetic field $B_0$ is:
Electromagnetic WavesWhich of the following electromagnetic waves has the shortest wavelength?
Electromagnetic WavesA plane electromagnetic wave in free space has electric field $\vec{E} = E_0 \hat{j} \cos(kx - \omega t)$ . Which of the following statements are TRUE?
Electromagnetic WavesFor an electromagnetic wave propagating through vacuum, $\vec{k}$ , $\vec{E}$ and $\omega$ represent propagation vector, electric field and angular frequency, respectively. The magnetic field associated with this wave is represented by :
Electromagnetic WavesA point light source emits E.M. waves in free space. A detector, placed at a distance of $L$ m, measures the intensity as $I_o$ . The detector is now shifted to another location on the same spherical surface ensuring the angle between original location and new location as $45°$ . The measured intensity at new location will be _______.
Electromagnetic WavesA displacement current of $4.0$ A can be set up in the space between two parallel plates of $6$ $\mu$ F capacitor. The rate of change of potential difference across the plates of the capacitor is nearly $\alpha \times 10^6$ V/s. The value of $\alpha$ is __________.

JEE Main Physics practice question on Electromagnetic Waves (Electromagnetic Spectrum), with the answer and a step-by-step solution. Scan a question from your own book or paper to get a whiteboard video.