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Q. An electron is accelerated from rest by a potential difference of 461 V. It then enters a uniform magnetic field of magnitude 184 mT with its velocity perpendicular to the field. Calculate (a) the speed of the electron and (b) the radius of its path in the magnetic field.

Q. A candle is placed 13.0 cm in front of a convex mirror. When the convex mirror is replaced with a plane mirror, the image moves 6.5 cm farther away from the mirror. Find the focal length of the convex mirror.

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Category:- Physics
Reference No.:- M9271997

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