2 Edelrege de la chambre de Vanessa que
Vanessa desire metendre la lumière de sa
chambre en deux droits erents. Pour cela, elle uth
lise le montage electrique constitue une pile, une
lampe, et de deux commutateurs A et B.
la
es
2
♡
1. a. Dans le cas du circuit représenté ci-dessus, la lampe
brille-t-elle ? Pourquoi ?​

their crystal patterns have been disrupted by stress

speed of light in vacuum is 300,000 km/s

speed of light in other mediums is given by the expression v = c/n, where c is the speed of light in vacuum and n is the refractive index of medium.

for the first medium v = 200,000 km/s

  so, refractive index of medium = 300000/200000 = 1.5

    1.5 refractive index is usually for glass. so first medium is glass.

for the second medium v = 250,00 km/s

so, refractive index of medium = 300000/250000 = 1.2

    1.2 refractive index is usually for water. so second medium is water.

for the third medium v = 0 km/s

so, refractive index of medium = 300000/0 = ∞

    ∞ refractive index is usually for opaque mediums. so third medium is opaque medium.