we are given
speed of light is
[tex]c=2.998*10^8m/s[/tex]
we are given
distance =10cm
Firstly, we will change it into m
1m =100cm
so,
distance =0.1m
so,
[tex]d=0.1m[/tex]
now, we can use formula
[tex]t=\frac{d}{c}[/tex]
now, we can plug values
and we get
[tex]t=\frac{0.1}{2.998*10^8}seconds[/tex]..............Answer