A carbon ion of mass 2.00×10-26 kg but of unknown charge is projected from point P moving to the right (in the +x-direction) with speed v = 750 m/s. As the ion enters a region of a uniform magnetic field of magnitude 68.4×10-6 T pointing perpendicular to the plane of the screen, it moves in a circular trajectory of radius 0.458 m moving clockwise as viewed from the perspective shown (blue path). The circular path of a proton moving with the same initial velocity is also shown on top (black path). What is the charge q of the carbon, and in what direction does the magnetic field point? Diagram not drawn to scale. P

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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.