After three half lifes, the fraction of a radioactive mat...
After three half lifes, the fraction of a radioactive material that has decayed is
\(\frac{1}{8}\)
\(\frac{1}{3}\)
\(\frac{2}{3}\)
\(\frac{7}{8}\)
Correct answer is D
I = \(\frac{1}{2}\) \(\Rightarrow\) \(\frac{1}{4}\) \(\Rightarrow\) \(\frac{1}{8}\)
Fraction decayed = 1 - \(\frac{1}{8}\)
= \(\frac{7}{8}\)
Which of the following source of energy is renewable? ...
The S.I unit for sound energy is ...
If the capacitance of a capacitor is C = (εA)/d, which of the following parameters is varied...
An image which can be formed on a screen is said to be ...
14 N + 4 He → 17 O + X 7 2 8 In the equation above, the particles X ...
if ∆x is the uncertainty in the measurement of the position of a particle along the x-axis and ∆...