Which is the definition of refraction? 1)the blocking of light waves vibrating in a particular plane

2) the bending of a light wave as it passes at an angle from one medium to another

3) a false or distorted image causing the gradual distortion of light through hot air

the redirection of light by tiny particles as it passes through a medium

2) The bending of a light wave as it passes at an angle from one medium to another .

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two charges are fixed in place on the x-axis as shown. the charge at x = 0 is negative and has magnitude q = 2 μcoulombs (1 μcoulomb = 10-6 coulombs). the charge at x = d, (d = +12 cm), is positive and has magnitude q = 4 μcoulombs. find a point x = xo along the x-axis at which the electric field is zero.

d

explanation:

v=uf/(u-f)

= 5.10/(5-10) convex lens has positive focal length

=50/-5

=-10 cm (formed at other side)