MCQOPTIONS
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MCQOPTIONS
| 1. |
The wave front of a light beam is given by the equation \[x+2y+3x=c\](where c is arbitrary constant), then the angle made by the direction of light with the y-axis is |
| A. | \[{{\cos }^{-1}}\frac{1}{\sqrt{14}}\] |
| B. | \[{{\sin }^{-1}}\frac{2}{\sqrt{14}}\] |
| C. | \[{{\cos }^{-1}}\frac{2}{\sqrt{14}}\] |
| D. | \[{{\sin }^{-1}}\frac{3}{\sqrt{14}}\] |
| Answer» D. \[{{\sin }^{-1}}\frac{3}{\sqrt{14}}\] | |