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 the proper definition of light?
i measured a 3-ph capacitor with a multimeter which is not connected to supply... but i could get the phase to phase voltage... how tis is possible..????
What is a crest?
Explain the difference between isolation transformers and step up or step down transformer?
What is the opaque?
Explain the thermal transformation?
Explain the index of refraction of air?
All elements with an atomic number greater than what number are unstable?
what is use of physics in banking ? why we hire you as you are graduated in physics honours?
What are the three particles that make up an atom?
any one have interview on 27 april please share the question as soon as possible because my interview on 28 april
Does a soccer ball go faster in the air on a cold or hot day?
How is radiocarbon produced in the atmosphere?
What is a galvanometer?
What is the melting point of copper?