JEE Main 2020 — Electromagnetic Waves Question with Solution
From: JEE Main 2020 (Online) 6th September Morning Slot
Question
Suppose that intensity of a laser is W/m2.
The rms electric field, in units of V/m associated with this source is close to the nearest integer is __________.
0 = 8.86 × 10–12 C2 Nm–2; c = 3 × 108 ms–1)
The rms electric field, in units of V/m associated with this source is close to the nearest integer is __________.
0 = 8.86 × 10–12 C2 Nm–2; c = 3 × 108 ms–1)
Enter your answer
Show full solutionCorrect answer: 194
Correct answer
194
Step-by-step explanation
I = 0c
E0 =
Erms = =
=
= 194
E0 =
Erms = =
=
= 194
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