A) \[\frac{2}{3}\]
B) \[\frac{4}{9}\]
C) \[\frac{5}{9}\]
D) \[\frac{2}{9}\]
Correct Answer: C
Solution :
Energy released, \[R=m{{c}^{2}}\] If speed of light were\[\frac{2}{3}\]of its present value, then \[E=m{{\left( \frac{2}{3}c \right)}^{2}}=\frac{4}{9}m{{c}^{2}}=\frac{4}{9}E\] Energy decreased by \[E-E=E-\frac{4}{9}E=\frac{5}{9}E\]
You need to login to perform this action.
You will be redirected in
3 sec
