What is the common examiner trap about Science & Tech in UPSC exams?

Confusing MIRV (Multiple Independently targetable Re-entry Vehicle) with MaRV (Maneuverable Re-entry Vehicle), which changes trajectory during re-entry. Another trap is mixing up components of Forex Reserves, like substituting IMF's 'Reserve Tranche Position' with 'Credit Tranche'.

What should UPSC aspirants remember about Science & Tech for Prelims?

1. Target this Data: India became the 6th nation to test MIRV technology. 2. Target this Nodal Body: Defence Research and Development Organisation (DRDO) developed the Agni missile family. 3. Target this Legal Point: India's nuclear doctrine is based on a No-First-Use (NFU) policy.

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News 3 of 25

Agni-5 MIRV Test Boosts Nuclear Deterrent, AMOC Slowdown Threatens Monsoon, Rupee Hits 95.63

Q: Which Indian organization is responsible for the development of the Agni series of missiles?

Defence Research and Development Organisation (DRDO), The article states that the Agni missile family was developed by the Defence Research and Development Organisation (DRDO). ISRO handles space missions, while HAL and BDL are defence PSUs involved in aircraft and missile production, respectively.

Q: Consider the following statements: 1. MIRV technology allows a single missile to carry multiple warheads that can be independently targeted at different locations. 2. The Atlantic Meridional Overturning Circulation (AMOC) is primarily driven by wind patterns and is independent of differences in ocean temperature and salinity. 3. In a freely floating exchange rate system, the value of a currency is determined by demand and supply in the foreign exchange market. Which of the statements given above is/are correct?

Both 1 and 3, Statement 1 is correct as per the core concept of MIRV. Statement 2 is incorrect because AMOC, part of thermohaline circulation, is driven by temperature and salinity differences (density), not just wind. Statement 3 correctly defines a free-floating exchange rate system.

Q: According to the news, to what level did the Indian rupee depreciate against the US dollar, hitting a fresh record low?

95.63, The article explicitly states: "The rupee slipped to a fresh record low of 95.63 yesterday against the US dollar." The other options are plausible but incorrect distractors.

Q: What is a primary strategic implication of India successfully testing MIRV technology on the Agni-5 missile?

It enhances India's second-strike capability, strengthening nuclear deterrence., The article explains that MIRV technology, by enabling a devastating counterattack with multiple warheads, is critical for India's no-first-use doctrine and deters adversaries from striking first. The other options are incorrect: cost reduction is not the primary goal, pre-emptive strikes contradict stated doctrine, and MIRV is a military, not civilian, technology.

Science & Tech Economy Environment Security & DefenceCORE

Target:UPSC GS-IIIMPSCSSC GATeachingPrelims HighMains HighStatic GK Link

13 May 2026

~2 min

Source: Indian Express

Key Data:95.63 (Rupee/USD)59% (AMOC slowdown)5,000+ km (Agni-5 range)6th nation (MIRV club)

Bodies:Ministry of DefenceDRDORBI

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~2 min · Quick mode

What This Article Covers

1.India successfully flight-tested the MIRV-equipped Agni-5 missile, becoming the 6th nation with this technology, which enhances nuclear deterrence by allowing multiple warheads on a single missile.

2.New research warns the Atlantic Meridional Overturning Circulation (AMOC), a key climate regulator, could slow by 59% by 2100, potentially disrupting the Indian monsoon and global weather patterns.

3.The rupee depreciated to a fresh record low of 95.63 against the US dollar, highlighting external economic pressures and the importance of understanding exchange rate dynamics and forex reserves.

The Big Picture

Prelims · HighMains · High

Three high-impact concepts for UPSC Prelims converge: India's successful Agni-5 MIRV test strengthens its nuclear second-strike capability, a predicted 59% slowdown in the Atlantic Ocean's AMOC current by 2100 poses a severe threat to the Indian monsoon, and the rupee hitting a record low of 95.63 underscores critical economic pressures.

Exam Lens

Quick Exam Facts From News

MIRV Test DateMay 8, 2025

Agni-5 Range5,000+ km

Rupee Record Low95.63 per US dollar

AMOC Slowdown ProjectionUp to 59% by 2100

1-Minute Revision

›MIRV Test Date: May 8, 2025
›Agni-5 Range: 5,000+ km
›Target this Data: India became the 6th nation to test MIRV technology.
›Target this Nodal Body: Defence Research and Development Organisation (DRDO) developed the Agni missile family.
›Target this Legal Point: India's nuclear doctrine is based on a No-First-Use (NFU) policy.

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News Snapshot

🚀

MIRV Milestone

India's successful Agni-5 MIRV test marks a strategic leap in nuclear deterrence, enabling one missile to deliver multiple warheads to separate targets.

🌊

Climate Tipping Point

The Atlantic Meridional Overturning Circulation (AMOC), a crucial ocean heat conveyor, faces a potential 59% slowdown by 2100, threatening India's monsoon system.

💱

Currency Pressure

The rupee's slide to a historic low of 95.63 per dollar underscores vulnerabilities in an import-dependent economy and the role of RBI's forex reserves.

Detailed Analysis & Strategic Depth

Context / Background

MIRV technology, developed in the 1960s, is a hallmark of advanced nuclear arsenals. India's test follows similar capabilities by the P5 nations and Pakistan's claimed Ababeel missile. Concurrently, climate science has long identified AMOC as a vulnerable tipping point, with fresh meltwater from Arctic ice acting as a brake. Exchange rate volatility is a perennial economic challenge, influenced by global dollar strength and India's trade deficit.

Core Analysis & Implications

The Agni-5 MIRV test is a force multiplier. It comifies an adversary's missile defense due to multiple independent trajectories and decoy warheads, solidifying India's no-first-use doctrine with a devastating second-strike capability. The AMOC slowdown prediction is alarming; as a major heat redistributor, its weakening could trap heat in the Southern Hemisphere, cool the North Atlantic, and make ENSO (El Niño) events more extreme, directly endangering monsoon-dependent Indian agriculture. The rupee's depreciation increases import costs, fueling inflation, while exporters gain temporary competitiveness, highlighting the complex trade-offs managed by the RBI.

Future Outlook / Way Forward

Strategic: Development of Agni-6 with MIRV is underway, further expanding India's long-range deterrent. Environmental: The AMOC research underscores the urgency of global climate mitigation to prevent crossing irreversible thresholds. Economic: The RBI will continue to use forex reserves (comprising FCA, gold, SDRs, and RTP) to manage volatility, while structural measures to reduce import dependency, like PM Modi's appeal for fuel conservation, remain critical.

Key Facts at a Glance

MIRV Test DateMay 8, 2025

Agni-5 Range5,000+ km

Rupee Record Low95.63 per US dollar

AMOC Slowdown ProjectionUp to 59% by 2100

You've read the full analysis. Now test your understanding.

Practice exam-style questions based on this article.

Q1Static LinkageEasyUPSC, SSC, State PSC

Which Indian organization is responsible for the development of the Agni series of missiles?

Q2Statement-basedHardUPSC, SSC

Consider the following statements:

1. MIRV technology allows a single missile to carry multiple warheads that can be independently targeted at different locations.

2. The Atlantic Meridional Overturning Circulation (AMOC) is primarily driven by wind patterns and is independent of differences in ocean temperature and salinity.

3. In a freely floating exchange rate system, the value of a currency is determined by demand and supply in the foreign exchange market.

Which of the statements given above is/are correct?

Q3Data-centricMediumUPSC, Banking, SSC

According to the news, to what level did the Indian rupee depreciate against the US dollar, hitting a fresh record low?

Q4Application/ImpactMediumUPSC

What is a primary strategic implication of India successfully testing MIRV technology on the Agni-5 missile?

All 25 MCQs ▸

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Agni-5 MIRV Test Boosts Nuclear Deterrent, AMOC Slowdown Threatens Monsoon, Rupee Hits 95.63

Exam Lens

Quick Exam Facts From News

1-Minute Revision

News Snapshot

MIRV Milestone

Climate Tipping Point

Currency Pressure

Detailed Analysis & Strategic Depth

Context / Background

Core Analysis & Implications

Future Outlook / Way Forward

Prelims Flashpoints

Key Facts at a Glance