Answer Posted / guest
Some substance become luminous when light of a certain wave
length falls upon them. The wave length of the light emitted
by them is always different from that by which they are
illuminated. This phenomenon is called fluorescence e.g.
floorsper, chlorophylle.
| Is This Answer Correct ? | 4 Yes | 0 No |
Post New Answer View All Answers
What is black body and what are its characteristics? : quantum physics
Why is n-type conductor is neutral?
Explain the index of refraction of air?
What path does an asteroid take?
what is use of physics in banking ? why we hire you as you are graduated in physics honours?
Explain optical telescopes?
What is the law of machines?
Considering the specific heat of aluminum is 0.21, iron is 0.10, and lead is 0.03, which metal will show the largest increase in temperature per calorie added to onegram of that metal?
Define Biot Number?
How we are getting light from electrical bulb?
What is the universal law of universal gravitation?
Order the following from the worst electrical conductor to the best electrical conductor? Glass, rubber, iron, dry wood
What is the translucent?
When sound waves travel from air to water, what happens to its frequency?
Why does a tilted gyroscope not fall?