Podcast
Questions and Answers
What is the formula to calculate the energy difference of a charged particle in an electric field?
What is the formula to calculate the energy difference of a charged particle in an electric field?
- $hf = E_1 / E_2$
- $hf = E_1^2 - E_2^2$
- $hf = E_2 - E_1$ (correct)
- $hf = E_2 + E_1$
What is the formula to calculate the activity of a radioactive sample?
What is the formula to calculate the activity of a radioactive sample?
- A = dN/dt - λN
- A = dN/dt + λN
- A = λN (correct)
- A = λ/dt
What is the relationship between half-life and decay constant?
What is the relationship between half-life and decay constant?
- T_½ = λ^2
- T_½ = λ/ln2
- T_½ = ln2/λ (correct)
- T_½ = 1/λ
What is the formula to calculate energy from mass according to the mass-energy equivalence equation?
What is the formula to calculate energy from mass according to the mass-energy equivalence equation?
What does the symbol Z represent in the chemical symbol of an isotope?
What does the symbol Z represent in the chemical symbol of an isotope?
What is the unit of the decay constant λ?
What is the unit of the decay constant λ?
What is the relationship between the activity A of a radioactive sample and the number N of undecayed nuclei?
What is the relationship between the activity A of a radioactive sample and the number N of undecayed nuclei?
What is the physical quantity that is related to the frequency f of a charged particle in an electric field?
What is the physical quantity that is related to the frequency f of a charged particle in an electric field?
What is the unit of the energy E in the formula hf = E2 – E1?
What is the unit of the energy E in the formula hf = E2 – E1?
What is the physical significance of the decay constant λ?
What is the physical significance of the decay constant λ?
What is the consequence of the mass-energy equivalence equation E=mc^2?
What is the consequence of the mass-energy equivalence equation E=mc^2?
