Уге - а (ч1) че
5 х
10. а/чx + ) -
4
x

7y = pie x 2

Explanation:

7y is worth 2x 49

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).

b.transmitters send radio waves, and receivers capture radio waves.