To find out if a wooden block is planed correctly, the carpenter looks along its edge and easily detects any deviations
| October 29, 2020 | Education
To find out if a wooden block is planed correctly, the carpenter looks along its edge and easily detects any deviations from a straight line. What property of the light beam is used for this?
The property of straight-line propagation of light rays helps the carpenter to detect deviations from a straight line on the surface of the bar.
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