SSC GK Questions 2026

BrahMos is a supersonic cruise missile built by BrahMos Aerospace, a joint venture of India's Defence Research and Development Organisation and Russia's NPO Mashinostroyeniya, and its name joins the Brahmaputra of India with the Moskva of Russia, the river that runs through Moscow.

AYUSH expands as Ayurveda, Yoga and Naturopathy, Unani, Siddha and Homoeopathy, so the letters stand for five traditional systems in which the S is Siddha, the Tamil system of medicine associated with the Siddhars of south India.

HTTP is the set of rules by which a browser asks a web server for a page and the server sends it back; HTTPS is the same protocol carried over an encrypted connection, which is why banking sites use it.

OPEC was founded at the Baghdad Conference of 1960 by Iran, Iraq, Kuwait, Saudi Arabia and Venezuela, and its secretariat has been at Vienna in Austria since 1965.

Sonar sends a pulse of sound into the water and times the echo returning from the sea bed, a shoal of fish or a submarine; since the speed of sound in sea water is roughly 1,500 metres a second, the time gives the distance.

NavIC is the name given to the Indian Regional Navigation Satellite System, or IRNSS, built by ISRO to give position fixes over India and a region around it, independent of the American GPS.

The Act was passed in 2005 as the National Rural Employment Guarantee Act and renamed after Mahatma Gandhi in 2009.

Radar sends out radio waves and measures the echo that returns from an object, so the time taken gives the distance, or range, and the shift in frequency gives the speed by the Doppler effect.

The agency was created by the General Assembly in 1946 as the United Nations International Children's Emergency Fund, for children in countries ruined by the Second World War, and in 1953 it was made a permanent part of the United Nations and renamed the United Nations Children's Fund, keeping the…

The IFSC is an eleven-character alphanumeric code that identifies a particular bank branch in the electronic payment systems operated by the Reserve Bank of India, and it is required for NEFT and RTGS transfers.

A laser produces a narrow, coherent, single-wavelength beam by stimulated emission, in which an excited atom is made to release a photon identical to the one that strikes it.

NITI Aayog replaced the Planning Commission on 1 January 2015 and works as the policy think tank of the Government of India.

The transmitter of an optical fibre link must be small enough to couple light into a core a few micrometres across, must switch on and off millions or billions of times a second, and must emit in a narrow band of wavelengths; a light-emitting diode meets these conditions, and for…

At the receiving end of an optical fibre link the light pulses must be turned back into an electrical signal, and that is the work of a photodiode, a reverse-biased junction in which incident photons generate charge carriers and so a current proportional to the light falling on it; PIN…

A fibre-to-the-home connection runs from the operator's equipment to the subscriber's premises over a distance of kilometres, and for such runs single-mode fibre is used: its core is only a few micrometres wide, so light travels along one path, there is no spreading of the pulse from different paths arriving…

In an optical fibre the glass core has a higher refractive index than the cladding around it, so light that meets the core-cladding boundary at an angle greater than the critical angle is reflected entirely back into the core instead of passing out, and it travels along the fibre in…

The International Telecommunication Union has adopted the framework recommendation for IMT-2030, which describes what 6G should achieve: terahertz and other very high frequency bands, latency below a millisecond, artificial intelligence built into the network, communication combined with sensing, satellite-extended coverage and better energy efficiency.

TRAI was set up under the Telecom Regulatory Authority of India Act, 1997, to regulate telecom services, fix tariffs and protect the interests of consumers once private operators entered the field.

The first mobile telephone call in India was made on 31 July 1995 between Kolkata and New Delhi, a year after the National Telecom Policy of 1994 opened mobile services to private operators.

The three categories actually defined are given in the other options.