2007-02-24 00:34:37 · 4 answers · asked by PRATYUSHA G 1 in Science & Mathematics ➔ Physics
v =c/n
where v velocity of light in a given medium
c = 300000km/s
n = refrative index
so here v = 300000/(4/3) = 225000 km/s (water is the medium)
2007-02-24 00:40:39 · answer #1 · answered by maussy 7 · 0⤊ 0⤋
speed of light will be = 3/4*300000 km/s
= 225000 km/s
2007-02-25 18:44:42 · answer #2 · answered by Anonymous · 0⤊ 0⤋
refractive index=4/3
vel.of light in air=300000km/sec
vel.of light in medium=?
so
refractive index=vel.of light in air/vel.of light in medium
4/3=300000/vel.of light in medium
vel.of light in medium=300000*3/4
vel.of light in medium=225000km/sec
2007-02-24 02:07:19 · answer #3 · answered by Anonymous · 0⤊ 0⤋
n=v/c therefore the ans given by two is rt
2007-02-24 23:42:43 · answer #4 · answered by IYER S 2 · 0⤊ 0⤋