← All questionsGS3 · 2021 · Internal Security ·Blue LEDs & Nobel Prize
QUESTION 16
GS3
15 marks

The Nobel Prize in Physics of 2014 was jointly awarded to Akasaki, Amano and Nakamura for the invention of Blue LEDs in 1990s. How has this invention impacted the everyday life of human beings?

WRITE IN
11 min
250 words
☆ Save✎ Write this answer

What the examiner wants

Explain: answer the exact PYQ as framed — “The Nobel Prize in Physics of 2014 was jointly awarded to Akasaki, Amano and Nakamura for the invention of Blue LEDs in 1990s. How has this invention impacted the everyday life of human beings?” Treat each scoring limb separately instead of writing a general note on Blue LEDs & Nobel Prize.

ExplainMake clear how and why it happens: causes, process, and an example for each point.

Demand-wise check

  1. 1The Nobel Prize in Physics of 2014 was jointly awarded to Akasaki, Amano and Nakamura for the invention of Blue LEDs in 1990s≈95 words
  2. 2How has this invention impacted the everyday life of human beings?≈95 words

Open in about 30 words and close in about 30.

Answer plan

Define the threat/contextCauses and operating mechanismIndia-specific impacts/vulnerabilitiesExisting responseGaps and calibrated countermeasures

Where marks usually go

  • Writing generally about Blue LEDs & Nobel Prize without directly resolving: “The Nobel Prize in Physics of 2014 was jointly awarded to Akasaki, Amano and Nakamura for the invention of Blue LEDs in 1990s.”
  • Under-developing the second scoring limb: “How has this invention impacted the everyday life of human beings?”

Value addition

  • 3–4 node flowchart or dimension wheel keyed to the question’s main components
    → Draw it in the body, next to the point it supports.

Official source anchors

These are authoritative sources selected for this exact PYQ. Where a card is an official-domain anchor rather than a fact-level citation, verify the precise provision, definition or data point on the linked source before using it.