Two flat mirrors are perpendicular to each other (like this: _| ask me to draw if this is unclear). An incoming beam of light makes an angle of 45 degrees with the first mirror. What angle will the outgoing beam make with the second mirror

the arctic is a region of the planet, north of the arctic circle, and includes the arctic ocean, greenland, baffin island, other smaller northern islands, and the far northern parts of europe, russia (siberia), alaska and canada.

current flows in a wire

option number c is the right answer.

i think it would be 5