Five cylindrical wires are made of the same material. their lengths and radii are: wire 1: length l , radius r wire 2: length 3l/2 , radius r/2 wire 3: length l/2 , radius r/2 wire 4: length l , radius r/2 wire 5: length 5l , radius r/2

answer: the correct answer id option(d).

explanation:

snell's law refraction:

the angle of refraction =

the angle of incidence =

refractive index of air = = 1

refractive index of glycerol = 1.47

from the given options, the most closest answer to 63.72° is 65° of option (d).

what are the statements? x

a coal burning power plant