The HAL Tejas is a lightweight multirole fighter developed by India. It is a tailless, compound deltawing design powered by a single engine. It came from the Light Combat Aircraft (LCA) programme, which began in the 1980s to replace India’s aging MiG-21 fighters. Later, the LCA was officially named “Tejas”, meaning “Radiance” by then Prime Minister Atal Bihari Vajpayee. The Tejas has a pure delta wing configuration, with no tailplanes or foreplanes, and a single dorsal fin. It integrates technologies such as relaxed static stability, fly-by-wire flight control system, advanced digital cockpit, multi-mode radar, integrated digital avionics system, advanced composite material structures and a flat rated engine.

Correct Option: D

The HAL Tejas is a lightweight multirole fighter developed by India. It is a tailless, compound deltawing design powered by a single engine. It came from the Light Combat Aircraft (LCA) programme, which began in the 1980s to replace India’s aging MiG-21 fighters. Later, the LCA was officially named “Tejas”, meaning “Radiance” by then Prime Minister Atal Bihari Vajpayee. The Tejas has a pure delta wing configuration, with no tailplanes or foreplanes, and a single dorsal fin. It integrates technologies such as relaxed static stability, fly-by-wire flight control system, advanced digital cockpit, multi-mode radar, integrated digital avionics system, advanced composite material structures and a flat rated engine.

Agni-III is an intermediate-range ballistic missile developed by India as the successor to Agni-II. It has a range of 3,500 km- 5,000 km, and is capable of engaging targets deep inside neighboring countries. The missile’s Circular error probable (CEP) is within 40 meters range, which makes it the most sophisticated and accurate ballistic missile of its range class in the world. Agni III—an intermediate-range ballistic missile—was developed by India as the successor to Agni-II. Designed by the Indian government’s Defence Research and Development Organisation, Agni III is a two-stage ballistic missile that is capable of nuclear weapons delivery. It was designed and developed by the Advanced Systems Laboratory (ASL), a unit of DRDO, which was formed in September 2001 with its main objective being the development of large-sized rocket motors. Note : Agni-VI is an intercontinental ballistic missile reported to be in early stages of development by India. It will be capable of being launched from submarines as well as from land, and will have a strike-range of 8,000–10,000 km with MIRVed warheads. Agni-V is a solid fueled intercontinental ballistic missile (ICBM) developed by Defence Research and Development Organization (DRDO) of India. It will greatly expand India’s reach to strike targets more than 5,500 km away. Agni-IV is the fourth in the Agni series of missiles which was earlier known as Agni II prime. Its full range of 4000 km

Correct Option: B

Agni-III is an intermediate-range ballistic missile developed by India as the successor to Agni-II. It has a range of 3,500 km- 5,000 km, and is capable of engaging targets deep inside neighboring countries. The missile’s Circular error probable (CEP) is within 40 meters range, which makes it the most sophisticated and accurate ballistic missile of its range class in the world. Agni III—an intermediate-range ballistic missile—was developed by India as the successor to Agni-II. Designed by the Indian government’s Defence Research and Development Organisation, Agni III is a two-stage ballistic missile that is capable of nuclear weapons delivery. It was designed and developed by the Advanced Systems Laboratory (ASL), a unit of DRDO, which was formed in September 2001 with its main objective being the development of large-sized rocket motors. Note : Agni-VI is an intercontinental ballistic missile reported to be in early stages of development by India. It will be capable of being launched from submarines as well as from land, and will have a strike-range of 8,000–10,000 km with MIRVed warheads. Agni-V is a solid fueled intercontinental ballistic missile (ICBM) developed by Defence Research and Development Organization (DRDO) of India. It will greatly expand India’s reach to strike targets more than 5,500 km away. Agni-IV is the fourth in the Agni series of missiles which was earlier known as Agni II prime. Its full range of 4000 km

The Bhabha Atomic Research Centre (BARC) is India’s premier nuclear research facility based in Trombay, Mumbai. BARC is a multi-disciplinary research centre with extensive infrastructure for advanced research and development covering the entire spectrum of nuclear science, engineering and related areas. BARC’s core mandate is to sustain peaceful applications of nuclear energy, primarily for power generation. It manages all facets of nuclear power generation, from theoretical design of reactors, computerized modeling and simulation, risk analysis, development and testing of new reactor fuel materials, etc. It also conducts research in spent fuel processing, and safe disposal of nuclear waste. Its other research focus areas are applications for isotopes in industries, medicine, agriculture, etc.

Correct Option: B

The Bhabha Atomic Research Centre (BARC) is India’s premier nuclear research facility based in Trombay, Mumbai. BARC is a multi-disciplinary research centre with extensive infrastructure for advanced research and development covering the entire spectrum of nuclear science, engineering and related areas. BARC’s core mandate is to sustain peaceful applications of nuclear energy, primarily for power generation. It manages all facets of nuclear power generation, from theoretical design of reactors, computerized modeling and simulation, risk analysis, development and testing of new reactor fuel materials, etc. It also conducts research in spent fuel processing, and safe disposal of nuclear waste. Its other research focus areas are applications for isotopes in industries, medicine, agriculture, etc.

Pokhran is a city and a municipality located in Jaisalmer district in the Indian state of Rajasthan. It is a remote location in the Thar Desert region and served as the test site for India’s first underground nuclear weapon detonation. It shot into the international limelight on 7 September 1974 when the then Indian Prime Minister Indira Gandhi verbally authorized scientists at the Bhabha Atomic Research Centre (BARC) at Trombay to detonate small and miniaturized nuclear device. Throughout its development, the device was formally called the “Peaceful Nuclear Explosive (PNE)” by Indian Government, but it was usually referred to as the Operation Smiling Buddha. On May 11 of 1998, 24 years after the first operation, the Atomic Energy Commission of India and the Defence Research and Development Organisation (DRDO) carried out the joint operation, known as Pokhran-II. The AEC India detonated its four devices as part of the underground nuclear testing on Pokhran Test Range.

Correct Option: C

Pokhran is a city and a municipality located in Jaisalmer district in the Indian state of Rajasthan. It is a remote location in the Thar Desert region and served as the test site for India’s first underground nuclear weapon detonation. It shot into the international limelight on 7 September 1974 when the then Indian Prime Minister Indira Gandhi verbally authorized scientists at the Bhabha Atomic Research Centre (BARC) at Trombay to detonate small and miniaturized nuclear device. Throughout its development, the device was formally called the “Peaceful Nuclear Explosive (PNE)” by Indian Government, but it was usually referred to as the Operation Smiling Buddha. On May 11 of 1998, 24 years after the first operation, the Atomic Energy Commission of India and the Defence Research and Development Organisation (DRDO) carried out the joint operation, known as Pokhran-II. The AEC India detonated its four devices as part of the underground nuclear testing on Pokhran Test Range.

A geosynchronous satellite is a satellite in geosynchronous orbit, with an orbital period the same as the Earth’s rotation period. Such a satellite returns to the same position in the sky after each sidereal day, and over the course of a day traces out a path in the sky that is typically some form of analemma.

Correct Option: A

A geosynchronous satellite is a satellite in geosynchronous orbit, with an orbital period the same as the Earth’s rotation period. Such a satellite returns to the same position in the sky after each sidereal day, and over the course of a day traces out a path in the sky that is typically some form of analemma.