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?
More Physics GS Questions
- Which physical quantity has unit “Joule/second”?
- When a cannonball is fired, its motion is an example of which type of motion?
- Rain drops acquire spherical shape due to -
- Which of the following statements is true for a conductor in an electric field?
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- The polarization of electromagnetic waves demonstrates that they are:
- In the equation of motion ( v = u + at ), ( u) represents:
- The coefficient of volume expansion of glycerin is 49 × 10-5 K-1. Find the fractional change in its density for a 20°C rise in temperature?
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- In a nuclear reaction, the product nucleus has higher binding energy per nucleon than the reactants. Which of the following is correct?
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