Physics
The speed of γ radiations is :
- of the order of 106 ms-1
- of the order of 107 ms-1
- equal to the speed of light, i.e. 3 x 108 ms-1
- none of the above
Related Questions
To study the age of excavated materials of archeological significance, we study the rate of decay of an isotope of :
- uranium
- cobalt
- carbon
- chlorine
A radioactive nucleus emits a beta particle. The position of daughter nucleus in the periodic table as compared to the parent nucleus after emitting a beta particle is :
- at the same place
- one place higher
- one place lower
- two places lower
Assertion (A): Out of α, β and γ radiation, α-particles have maximum penetrating power.
Reason (R): The α-particles are the heaviest amongst the three.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true and R is not the correct explanation of A.
- assertion is false but reason is true.
- assertion is true but reason is false.