10th Samacheer Quiz

Q1. What does nuclear fission refer to?

Fusion of light nuclei Splitting of a heavy nucleus into smaller nuclei Only electrons separating Decrease in atomic heat

Q2. In which device does controlled nuclear fission take place?

Nuclear reactor Telescope Elevator Microscope

Q3. Which statement is most directly related to Unit 6: Nuclear Physics?

Radioactivity Cell wall Gravity Photosynthesis

Q4. The nucleus contains protons and neutrons.

Protons and neutrons Electrons only Photons only Molecules only

Q5. Radioactivity is the spontaneous disintegration of unstable nuclei.

Radioactivity Refraction Conduction Evaporation

Q6. Why are radioactive isotopes used in nuclear medicine?

For diagnosis or treatment Only for cooking For producing sound To increase weight

Q7. Which nuclear process mainly occurs in the Sun?

Nuclear fission Nuclear fusion Only ionisation Nuclear extinction