Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
AIIMS 2015
Exam
AIIMS
Year
2015
Subject
Physics
Chapter
Thermal Properties of Matter

AIIMS 2015 · Physics · Thermal Properties of Matter

Assertion: UV radiation causes photo dissociation of ozone into O_2...

Assertion: UV radiation causes photo dissociation of ozone into O2\mathrm{O}_2 and O\mathrm{O}, thus causing damage to the stratospheric ozone layer. Reason : Ozone hole is resulting in global warming and climate change.

Options

  1. AIf both assertion and reason are true and reason is the correct explanation of assertion.
  2. BIfboth assertion and reason are true but reason is not the correct explanation of assertion.
  3. CIf assertion is true but reason is false.
  4. DIf both assertion and reason are false.

Correct answer

B. Ifboth assertion and reason are true but reason is not the correct explanation of assertion.

Step-by-step solution

O3⟶UV (sun) O2+\mathrm{O}_3 \stackrel{\mathrm{UV} \text{ (sun) }}{\longrightarrow} \mathrm{O}_2+O\mathrm{O}
Practice Thermal Properties of Matter on Quantrex Academy →

More from Thermal Properties of Matter

A cylindrical rod with one end in a steam chamber and the other end in ice results in… MHT CET Medical 2026A spherical blackbody of radius 10\ m is maintained at a temperature T , radiating power… MHT CET Medical 2026The rectangular surface area (12\ cm×6\ cm) of the black body, at a temperature 127^ ^ ∘… MHT CET Medical 2026A metal sphere cools at a rate of 2^ ^ ∘ C/min when the temperature is 80^ ^ ∘ C . If the… MHT CET Medical 2026A resistance thermometer has resistance 95\ Ω at the ice point and 140\ Ω at the steam… MHT CET Medical 2026A metal sphere cools from 80^ ^ ∘ C to 60^ ^ ∘ C in 10 minute. The time taken (in minute)… MHT CET Medical 2026If the temperature of 5 kg mass of a material of a specific heat capacity 200 J/kg ^ ^ ∘… MHT CET Medical 2026The initial temperature of a body is 80^ ^ ∘ C . If its temperature falls to 64^ ^ ∘ C in… MHT CET Medical 2026 Full Thermal Properties of Matter list All NEET PYQs