Physics — Prelims Questions
Consider the following statements about quantum computing: 1. Quantum computers use quantum bits (qubits) that can exist in superposition states 2. Quantum entanglement allows quantum computers to process information faster than classical computers 3. Quantum computers can solve all computational problems exponentially faster than classical computers 4. India's National Mission on Quantum Technologies aims to develop quantum communication networks Which of the statements given above are correct?
Which of the following phenomena is correctly matched with its physics principle and application? 1. GPS accuracy - General relativity - Satellite navigation 2. MRI imaging - Nuclear magnetic resonance - Medical diagnostics 3. Solar cell operation - Photoelectric effect - Renewable energy 4. Laser technology - Stimulated emission - Fiber optic communication
Consider the following statements about India's nuclear energy program: 1. Nuclear fission releases energy by splitting heavy atomic nuclei 2. India's three-stage nuclear program aims to utilize thorium reserves 3. Fast breeder reactors can produce more fissile material than they consume 4. Nuclear fusion is currently used for commercial power generation in India Which of the statements given above are correct?
Which of the following correctly explains the physics behind renewable energy technologies? 1. Wind turbines convert kinetic energy of moving air into electrical energy 2. Hydroelectric plants use gravitational potential energy of water 3. Solar thermal plants concentrate sunlight to generate steam for turbines 4. Geothermal plants utilize nuclear decay heat from Earth's core
Consider the following statements about electromagnetic radiation: 1. Radio waves have the longest wavelength in the electromagnetic spectrum 2. Microwaves are used in radar systems and cellular communications 3. Infrared radiation is primarily used for thermal imaging applications 4. Gamma rays have the highest frequency and energy in the electromagnetic spectrum Which of the statements given above are correct?