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Maxwell's Equations and Electromagnetic Waves - Class XI
Question 1 of 22
Choose the correct answer from the alternatives given.
A plane electromagnetic wave of frequency $25 MHz$ travels in free space along $X$-direction. At a particular point in space and time, electric field $\vec E=6.3\ \hat j\ V/m$. What is $B$ at this point.
- $1.2 \, \times \, 10^{-6} \, T$
- $1.2 \, \times \, 10^{-8} \, T$
- $2.1 \, \times \, 10^{-6} \, T$
- $2.1 \, \times \, 10^{-8} \, T$
Prize Money
15ā¹7 Crores
14ā¹1 Crore
13ā¹50,00,000
12ā¹25,00,000
11ā¹12,50,000
10ā¹6,40,000
9ā¹3,20,000
8ā¹1,60,000
7ā¹80,000
6ā¹40,000
5ā¹20,000
4ā¹10,000
3ā¹5,000
2ā¹2,000
1ā¹1,000