Physics Yard

राज की बात

Current is a scalar quantity but current density is a vector quantity.

Q. Speed of light is
A) 3×10^8 m/s
B) 9×10^8 m/s
C) 8×10^3 m/s
D) 8×10^9 m/s

Q. Relation between angle of incidence and angle of reflection is
A) i = r
B) i > r
C) i < r
D) non of these