Physics
1. In nuclear reactor uranium-235 nuclei undergo fission in a controlled
chain reaction. Describe nuclear fission and how the chain reaction is
controlled. Draw the diagram.
2. Describe three differences between an alpha particle and a beta
particle.
3. What do you mean by Half-life. Explain experiment to find the half- life
of thoron gas.
4. What do you mean by alpha and beta decay? Explain using example.
5. Why Alpha particles more ionising than Bits particles.
6. Draw the diagram tracing path of radioactive emissions in magnetic
field.
7. When is gama radiation emitted?
8. Explain nuclear fusion with the help of diagram.