C.) Laser. the light from the laser reflects off the shiny surface as the CD rotates
<span>B. It stays the same</span>
Wouldn't everything fall?
<span>An imaginary line perpendicular to a reflecting surface is called "a normal" (principle line)
So, Your Answer would be Option B
Hope this helps!</span>
Atoms of the same element having equal numbers of protons, but different numbers of neutrons is called isotope.
