1. Tardigrade
  2. Question
  3. Chemistry
  4. Assertion: In electromagnetic spectrum, the small portion around 1015 Hz is called visible light. Reason: Visible region is only a small part of the entire spectrum which our eyes can see.

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Assertion : In electromagnetic spectrum, the small portion around $10^{15} Hz$ is called visible light.
Reason : Visible region is only a small part of the entire spectrum which our eyes can see.

Structure of Atom

Solution:

The Visible region of electromagnetic spectrum varies from $380\,nm$ to $760\, nm$ i.e. $7 \times$ $10^{14} Hz$ to $4 \times 10^{14} Hz$
This is the only region which is visible to human eyes. That's why it is termed as the Visible region. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion