Question
A sample contains equal numbers of two isotopes X and Y,
each with half-lives of 10 days and 20 days respectively. What is the ratio of activities Aₓ : Aᵧ after 20 days?Solution
More Physics GS Questions
What is the cause of hypermetropia?
I threw a ball horizontally on the road and after covering certain distance, the ball stopped due to
Which medium cannot propagate sound waves?
Cell was discovered by
What is the device used to amplify and modulate microwave frequency signals called?
Which of the following is the time taken for one complete oscillation of a sound wave in the density of the medium?
Water gets cooled, when ice is immersed in it, this phenomenon is known as
The loudness of the sound depends upon
What conditions must be met for stationary waves to form?
Among the following, which has the lowest density?