MCQs on science & technology feb 2026

Explanation: Photorealistic AI-generated content must be clearly and prominently labelled under the new IT Rules. Platforms must proactively label it if users fail to disclose it.

Explanation: The new rules require the removal of sensitive content, including non-consensual deepfakes, within 2 hours. Content declared illegal by a court/government must be removed within 3 hours.

Explanation: MANAV represents: M – Moral & Ethical Systems, A – Accountable Governance, N – National Sovereignty, A – Accessibility & Inclusivity, and V – Validity & Legitimacy.

Explanation: SAHI (Secure AI for Health Initiative) acts as a governance framework promoting safe, ethical, and responsible deployment of AI in the health sector.

Explanation: BODH (Benchmarking Open Data Platform for Health AI) is used to test and validate AI solutions before large-scale rollout to ensure reliability.

Explanation: Pax Silica aims to build trusted and diversified supply chains for electronics, semiconductors, and critical minerals to reduce over-dependence on China.

Explanation: NIELIT signed an MoU with the Government of Andhra Pradesh to set up the campus in Amaravati, which will become the core of the “Quantum Valley” initiative.

Explanation: Ranvir Sachdeva, an 8-year-old coder, spoke at the summit, highlighting the integration of ancient philosophy with modern AI.

Explanation: Gyan Bharatam aims to unearth, safeguard, and preserve India’s manuscript heritage through technology and digitization.

Explanation: The port initiated an advanced Anti-Drone System for real-time detection, tracking, and neutralisation of unauthorised drones.

Explanation: LLMs (Large Language Models) are advanced AI models trained on vast amounts of text data, dominating recent global AI funding.

Explanation: Deepfakes are highly realistic synthetic media (audio/video) generated using Artificial Intelligence algorithms.

Explanation: ULI (Unified Lending Interface) is a Digital Public Infrastructure aimed at transforming India’s digital lending ecosystem.

Explanation: A Qubit (quantum bit) can exist in multiple states simultaneously due to superposition, unlike classical bits which are 0 or 1.

Explanation: CRISPR-Cas9 is a precise gene-editing technology that allows scientists to alter DNA sequences.

Explanation: Aditya-L1 is India’s first dedicated scientific mission to study the Sun, placed in a halo orbit around Lagrange Point 1 (L1).

Explanation: Gaganyaan aims to demonstrate human spaceflight capability by sending a crew to Low Earth Orbit.

Explanation: Graphene is a 2D nanomaterial known for being incredibly strong, lightweight, and an excellent conductor of heat and electricity.

Explanation: LiDAR uses light in the form of a pulsed laser to measure distances and generate precise 3D information about the Earth.

Explanation: JWST’s infrared capabilities allow it to see through dust clouds and observe distant, early galaxies.

Explanation: NavIC (Navigation with Indian Constellation) is India’s independent regional navigation satellite system.

Explanation: NISAR (NASA-ISRO Synthetic Aperture Radar) is a joint mission to map Earth’s changing ecosystems and surfaces.

Explanation: Blockchain is a decentralized, distributed ledger technology used to securely record transactions.

Explanation: A Tokamak uses magnetic fields to confine plasma, aiming to harness energy from nuclear fusion.

Explanation: Mitochondria generate most of the cell’s supply of adenosine triphosphate (ATP), used as a source of chemical energy.

Explanation: Pragyan was the robotic rover that explored the lunar surface near the south pole.

Explanation: Kavach is an indigenous Automatic Train Protection (ATP) system developed to prevent train collisions.

Explanation: U-235 is fissile, meaning it can sustain a nuclear fission chain reaction, making it ideal for nuclear fuel.

Explanation: The escape velocity from Earth’s surface is approximately 11.2 kilometers per second.

Explanation: HTTP is the foundation of data communication on the World Wide Web.

Explanation: Silicon is the dominant semiconductor material due to its abundance and excellent semiconducting properties.

Explanation: Bluetooth uses short-wavelength UHF radio waves in the ISM band for communication.

Explanation: Bhuvan is a national geo-portal developed by ISRO providing Earth observation data and services.

Explanation: Bosons are particles that follow Bose-Einstein statistics, named after S.N. Bose.

Explanation: Vitamin D is produced endogenously in the skin upon exposure to UVB radiation from sunlight.

Explanation: Carbon dioxide is the most significant greenhouse gas contributing to human-induced global warming.

Explanation: 5G technology utilizes high-frequency millimeter waves to provide faster data transmission.

Explanation: It catalyzes a redox reaction to reduce the toxicity of emissions from internal combustion engines.

Explanation: Zika is transmitted primarily by Aedes species mosquitoes.

Explanation: The Geminids are a prolific annual meteor shower caused by the object 3200 Phaethon.

Explanation: AIRAWAT, installed at C-DAC Pune, is recognized globally as India’s fastest AI supercomputing system.

Explanation: XPoSat (X-ray Polarimeter Satellite) studies the polarization of cosmic X-rays from various celestial sources.

Explanation: The Artemis program’s primary goal is returning humans to the Moon and establishing a sustainable presence.

Explanation: The Event Horizon is the boundary of a black hole beyond which no light or radiation can escape.

Explanation: Cryogenics deals with physics at very low temperatures.

Explanation: Einstein won the 1921 Nobel Prize primarily for his discovery of the law of the photoelectric effect.

Explanation: JUICE stands for Jupiter Icy Moons Explorer.

Explanation: IoT connects physical objects with sensors and software to exchange data over the internet.

Explanation: A generator uses mechanical motive power to generate electrical power.

Explanation: Natural gas is composed primarily of methane.