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8.Electromagnetic waves
easy
If $\overrightarrow E $ and $\overrightarrow B $ are the electric and magnetic field vectors of E.M. waves then the direction of propagation of E.M. wave is along the direction of
A
$\overrightarrow E $
B
$\overrightarrow B $
C
$\overrightarrow E \times \overrightarrow B $
D
None of these
(AIPMT-1992) (AIPMT-2002)
Solution
(c) $EM$ waves travels with perpendicular to $\mathop E\limits^ \to $ and $\mathop B\limits^ \to $. . Which are also perpendicular to each other $\vec v = \vec E \times \vec B$
Standard 12
Physics
