Answer:
the angle of incident is 40°
Explanation:
NQ is the normal to the mirror, therefore
angle NQA =90°
PQA = 50°
incident angle = NQA - PQA
90°- 50° = 40°
note that the angle of reflection is equal to the angle of incident
Use the Kinematic Equation:
Plug in what is given and solve
If I remembered correctly the answer would be Ne and Ar(Neon and Argon
electron and neutron
