Modern Physics — Prelims Questions

Which of the following phenomena provides the strongest evidence for the particle nature of light?

Consider the following statements regarding nuclear fission and nuclear fusion: 1. Nuclear fission involves the splitting of a heavy nucleus, while nuclear fusion involves the combining of light nuclei. 2. Nuclear fission requires extremely high temperatures and pressures to initiate, whereas nuclear fusion can occur at room temperature. 3. Nuclear fission produces significantly more energy per unit mass than nuclear fusion. Which of the statements given above is/are correct?

Which of the following is NOT a direct consequence of Einstein's Special Theory of Relativity?

Consider the following applications: 1. GPS satellite synchronization 2. Medical PET scans 3. Laser surgery 4. Solar cell operation Which of the above applications are directly based on principles of Modern Physics?

Which of the following statements best describes the Heisenberg Uncertainty Principle?