Physics, 25.04.2020 05:01, RandomLollipop

"Suppose a horizontal laser beam is reflected off a plane mirror that is perfectly smooth and flat. At first, the mirror is angled upward at 4 degrees, measured from the vertical. Then, the angle of the mirror is changed to 6 degrees upward. How would the angle formed by the incoming laser beam and the reflected laser beam change

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"Suppose a horizontal laser beam is reflected off a plane mirror that is perfectly smooth and flat....