A laser beam has intensity... | JEE Main 2026 22 Jan Shift 2

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JEE MAIN 2026

22-01-2026 S2

Question

A laser beam has intensity of $4.0 \times 10^{14} \mathrm{~W} / \mathrm{m}^2$. The amplitude of magnetic field associated with beam is $\_\_\_\_$ T. (Take $\epsilon_{\mathrm{o}}=8.85 \times 10^{-12} \mathrm{C}^2 / \mathrm{Nm}^2$ and $\mathrm{c}=3 \times 10^8 \mathrm{~m} / \mathrm{s}$ )

Select the correct option:

A

18.3

B

2.0

C

1.83

D

5.5

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

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