For the same angle of incidence, the angle of 'refraction in three different media A, B and C are 10°, 25° and 40°,
respectively. In which medium the velocity of light will be
maximum?​

An electron moves with a constant horizontal velocity of 3.0 × 106 m/s and no initial vertical velocity as it enters a deflector inside a tv tube. the electron strikes the screen after traveling 26 cm horizontally and 19 cm vertically upward with no horizontal acceleration. what is the constant vertical acceleration provided by the deflector? (the effects of gravity can be ignored.)