Two plane mirrors make an angle of 
With each other.A light ray enters the system and is reflected once off of each mirror.Through what angle is the ray turned?
Definitions:
Substance Addiction
A chronic disease characterized by the compulsive use of substances despite harmful consequences.
Anxiety
A feeling of worry, nervousness, or unease about something with an uncertain outcome, often reflecting a heightened state of apprehension or fear.
Poor Concentration
Difficulty in focusing on tasks or maintaining attention for a reasonable period.
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