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Electromagnetic Waves

NEET level, single correct, medium

2 of 165

Question 2 of 165

Which of the following electromagnetic waves has the shortest wavelength?

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Answer: (A) Gamma rays

Gamma rays have the highest frequency and shortest wavelength in the EM spectrum.

NEET question paper PDF

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NEET 2025 question paper (Code 45)

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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 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 __________.
Electromagnetic WavesA magnetic field vector in an electromagnetic wave is represented by $\vec{B}=B_0\sin\left(2\pi vt-\dfrac{2\pi x}{\lambda}\right)\hat{j}$ . Its associated electric field vector is ______.

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