Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Open MARKS Web Download App
Search any question & find its solution
Question: Answered & Verified by Expert
Assertion : A red object appears dark in the yellow light.
Reason : The red colour is scattered less.
PhysicsWave OpticsAIIMSAIIMS 2004
Options:
  • A If both assertion and reason are true and reason is the correct explanation of assertion
  • B If both assertion and reason are true but reason is not the correct explanation of assertion
  • C If assertion is true but reason is false
  • D If both assertion and reason are false.
Solution:
2594 Upvotes Verified Answer
The correct answer is: If both assertion and reason are true but reason is not the correct explanation of assertion
A red object reflects red colour from a light falling on it. Thus when this object is viewed in yellow light then it absorbs all yellow light falling on it and appears dark. From Rayleigh's scattering is inversely proportional to $\lambda^4$. Red colour has largest wavelength; therefore this colour is scattered least as compared to other colours.

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.

Use on iOS or Desktop Download from Google Play