A certain watch’s luminous glow is due to zinc sulfide paint that is energized by beta particles given off by tritium, t
Posted: Mon May 16, 2022 3:59 pm
A certain watch’s luminous glow is due to zinc sulfide paint
that is energized by beta particles given off by tritium, the
radioactive hydrogen isotope 3H, which has a half-life of 12.3
years. This glow has about 1/10 of its initial brightness. How many
years old is the watch?
a. 20 yrs.
b. 30 yrs.
c. 40 yrs.
d. 50 yrs.
that is energized by beta particles given off by tritium, the
radioactive hydrogen isotope 3H, which has a half-life of 12.3
years. This glow has about 1/10 of its initial brightness. How many
years old is the watch?
a. 20 yrs.
b. 30 yrs.
c. 40 yrs.
d. 50 yrs.