MCQOPTIONS
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MCQOPTIONS
| 1. |
The intensity of direct sunlight on a surface normal to the rays is \[{{I}_{0}}\]. What is the intensity of direct sunlight on a surface, whose normal makes an angle of 60o with the rays of the sun [CPMT 1981] |
| A. | \[{{I}_{0}}\] |
| B. | \[{{I}_{0}}\left( \frac{\sqrt{3}}{2} \right)\] |
| C. | \[\frac{{{I}_{0}}}{2}\] |
| D. | \[2{{I}_{0}}\] |
| Answer» D. \[2{{I}_{0}}\] | |