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Electromagnetic Waves

JEE Main level, single correct, medium

146 of 165

Question 146 of 165

Which is the correct ascending order of wavelengths?

Show answer and solution

Answer: (B) ${\lambda }_{gamma-ray}\lt {\lambda }_{X-ray}\lt {\lambda }_{visible}\lt {\lambda }_{microwave}$

We know that

E=\dfrac{hc}{\lambda }\Rightarrow E\propto \dfrac{1}{\lambda }

. Also,

{E}_{gamma-ray}\gt {E}_{X-ray}\gt {E}_{visible}\gt {E}_{microwave}

Therefore,

{\lambda }_{gamma-ray}\lt {\lambda }_{X-ray}\lt {\lambda }_{visible}\lt {\lambda }_{microwave}

JEE Main question paper PDF

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JEE Main 2025 Apr 2 Shift 1 question paper

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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.