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Theoretical physicist Ashoke Sen wins Oskar Klein Medal

Why in news?

Ashoke Sen has been awarded the 2026 Oskar Klein Medal, becoming the first Indian to receive the honour.

UPSC Relevance – Prelims – Awards and honours, Persons in news. 

About the Oskar Klein Medal

  • Awarded by – Stockholm University and the Nobel Committee for Physics of the Royal Swedish Academy of Sciences, Sweden.
  • Recognises – Significant contributions to theoretical physics.
  • Started – 1988, along with the Oskar Klein Memorial Lectures. The medal winner delivers the memorial lecture in Stockholm.
  • Named after – Swedish physicist Oskar Klein (1894-1977).
  • 2026 lecture – Delivered by Ashoke Sen in Stockholm on 22 October 2026, titled “Gravity from Strings and Strings from Gravity”.
  • First Indian laureate to recieve – Ashoke Sen (2026).
  • Sen conjectures (1999) – Three related ideas that gave new ways to understand the behaviour of strings in string theory.

Practice MCQ

Q1. With reference to the Oskar Klein Medal, consider the following statements:

  1. It is awarded by Stockholm University and the Nobel Committee for Physics of the Royal Swedish Academy of Sciences.
  2. It recognises outstanding contributions to experimental particle physics.
  3. Ashoke Sen is the first Indian to receive it.
  4. It is named after a physicist who proposed adding an extra dimension of space to unify gravity and electromagnetism.

How many of the statements given above are correct?

(a) Only one

(b) Only two

(c) Only three

(d) All four

Answer: (c). Statement 2 is incorrect – the medal recognises contributions to theoretical physics.

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Shakshi

Written by

Shakshi

Editor — UPSC Content · Anantam IAS

Shakshi is an editor on the Anantam IAS content desk, working across study notes, Prelims revision sets and current-affairs monthly compilations for UPSC aspirants.

Specialises in · UPSC syllabus content, editing and publishing Experience · 2+ years

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