Physics: Heat and Thermodynamics: UPSC Previous Year Questions (Science and Technology)
1 previous year UPSC Prelims question on Physics: Heat and Thermodynamics (Science and Technology). Choose an option to see the answer and explanation.
Explanations state facts as of the year each question was asked; words like “recently” refer to that year.
Showing 1–1 of 1 question
UPSC 1999Science and Technology · Physics: Heat and Thermodynamics
Cryogenics is a branch of physics that focuses on the production and study of materials and phenomena at extremely low temperatures, typically below -150 degree celsius. At these temperatures, materials exhibit unique physical properties that are not observed under normal conditions.
Option (a) is correct: Cryogenics has three major applications:
Space Travel: Used in rocket propulsion with cryogenic fuels like liquid hydrogen (LH2) and liquid oxygen (LOX) for efficient and high-energy space missions. Surgery: Applied in cryosurgery to destroy diseased tissue using extremely low temperatures, benefiting fields like dermatology and oncology. Magnetic Levitation: Enables superconducting magnets in Maglev trains and devices by cooling materials to achieve zero electrical resistance, allowing frictionless transportation.
Answer key for these questions
Q
UPSC year
Correct answer
1
1999
(a) space travel, surgery and magnetic levitation
Frequently asked questions
How many previous year UPSC questions are there on Physics: Heat and Thermodynamics?
This page covers 1 previous year UPSC Prelims GS Paper-I questions on Physics: Heat and Thermodynamics (Science and Technology), asked from 1999 to 2003. Each has the correct answer and an explanation.
How should I use previous year UPSC questions for Prelims?
Attempt each question first, then open the answer and read the explanation for every option. Repeat by chapter, and track which statements UPSC reuses across years. Previous year questions show the exam pattern and difficulty level.
Which years are covered for Physics: Heat and Thermodynamics?
Questions on Physics: Heat and Thermodynamics (Science and Technology) are available for 4 years, from 1999 to 2003. Use the Year filter to practise a single paper.
