Within the green dashed circle shown in Figure P31.33, the magnetic field changes with time according to the expression B = 2.00t3 – 4.00t² + 0.800, where Bis in teslas, t is in seconds, and R = 2.50 cm. When t = 2.00 s, calcu- late (a) the magnitude and (b) the direction of the force exerted on an electron located at point P, which is at a distance r region. (c) At what instant is this force equal to zero? || 5.00 cm from the center of the circular field * X X x × P2 * P1 X x X X 12 r9 / X x x × 7× R X X X × * x X X × X X x x X X Bin x1 x x * /* x

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Applications Of Reflection Of Light

When a light ray (termed as the incident ray) hits a surface and bounces back (forms a reflected ray), the process of reflection of light has taken place.

Sign Convention for Mirrors

A mirror is made of glass that is coated with a metal amalgam on one side due to which the light ray incident on the surface undergoes reflection and not refraction.