NDA 2023
- Exam
- NDA
- Year
- 2023
- Subject
- General Ability
- Chapter
- General Science
NDA 2023 · General Ability · General Science
The streaming of light beams coming from the Sun through trees is...
The streaming of light beams coming from the Sun
through trees is said to have suggested that light travels
in straight line. The particles on the path of light beams
are visible to us because
Options
- Adust particles in the air reflect light into our eyes
- Bdust particles· in the air scatter light into our eyes
- Cdust particles in the air refract light into our eyes
- Ddust particles in the air polarize light into our eyes
Correct answer
B. dust particles· in the air scatter light into our eyes
Step-by-step solution
The scattering of light by colloidal particles like dust, smoke, water droplets etc , This phenomenon s known as tyndall effect. It is seen when a fine beam of sunlight enters a dusty room, Thus, the scattering of light makes the particle visible.