Science & Technology MCQs

Superposition is a fundamental principle of quantum mechanics that allows a quantum system, like a qubit, to be in multiple states simultaneously until it is measured.

A qubit (quantum bit) is the basic unit of quantum information. Unlike classical bits that can only be 0 or 1, qubits can exist in a superposition of both states simultaneously.

Next-generation communication satellites often feature more powerful and efficient transponders, advanced antenna systems, and digital signal processing capabilities to enhance data transmission rates and service quality.

Geostationary Orbit (GEO) is typically used for communication satellites because it allows them to remain in a fixed position relative to the Earth's surface, providing continuous coverage over a specific geographical area.

Advanced communication satellites are primarily designed to improve telecommunications, including broadband services, and to provide reliable communication infrastructure for disaster management and emergency response.

The LIGO-India observatory is planned to be established in the Hingoli district of Maharashtra. The site selection process considered factors like seismic stability and low human population density to minimize interference.

The primary scientific objective of LIGO-India is to detect and study gravitational waves originating from cataclysmic astrophysical events such as the merger of black holes and neutron stars. This will open a new window for observing the universe.

LIGO-India is a major scientific project that is a collaboration between the Department of Atomic Energy (DAE) and the Department of Science and Technology (DST) in India, and the LIGO Laboratory in the United States. It aims to establish a gravitational wave detector in India, complementing the existing LIGO detectors in the US.

Semi-cryogenic engines, particularly those using kerosene and LOX, are generally more cost-effective to manufacture and operate compared to fully cryogenic engines. This cost reduction is a significant factor in ISRO's strategy for the NGLV program, aiming for more frequent and affordable access to space.

The semi-cryogenic engine technology is being developed specifically for ISRO's Next Generation Launch Vehicle (NGLV) program. This engine is expected to provide higher thrust and efficiency compared to existing engines, making NGLV a more capable launch platform.