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Question:
For a plane mirror that is true of the normal?
Feedback:
The usual is an imaginary line that passes through the point of incidence and is perpendicular to the surface of the mirror. The angle of incidence is the angle which is the incident ray makes with the normal.
The angle of reflection is the angle which the reflected ray makes with the normal.
why The magnitude of known potential difference must be greater than the value of unknown potential difference to be measured.
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