MCQ
A ray is reflected in turn by three plain mirrors mutually at right angles to each other. The angle between the incident and the reflected rays is
- A90°
- B60°
- ✓180°
- DNone of these
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$B = 100 \times {10^{ - 6}}\,\sin \,\left[ {2\pi \times 2 \times {{10}^{15}}\,\left( {t - \frac{x}{c}} \right)} \right]$
then the maximum electric field associated with it is
