Question

in cat timp lumina parcurge o distanta de 1 m dar diametrul unui atom (1,06*10^-10m)? Viteza luminii c=3*10^8 m/s

Answer 1

Răspuns:

Explicație:

d1=1m

d2=1.06*10^-10m

c=3*10^8m/s

t1,t2=?

c=d/t

c=d1/t1 ->t1=d1/c=1/3*10^8=0.33*10^-8=3.3*10^-9s=t1

c=d2/t2 ->t2=d2/c=1.06*10^-10/3*10^8=0.35*10^-2=3.5*10^-3s=t2