How we are getting light from electrical bulb.Please brief
in detail.
- 1 Answers
- 3757 Views
- I also Faced
- E-Mail Answers
Answer / muhammad zahid
shortly by thermionic emission the light bulb contains a
filament. this filament has a cathode and an anode. when we
switch on the bulb.then the cathode of the filament becomes
hot. due to this thermal electrons are ejected from the
cathode and move towards anode.on the path of electrons,
they make an elastic collision with the gas molecules
within the tube or filament. so the atoms of the gas are
raised to higher energy states. when these atoms dexcite
then light is emitted as predicted by Bohr theory
| Is This Answer Correct ? | 4 Yes | 0 No |
Whar are the different parts of the x-ray radiation intensity graph? : quantum physics
a ball of mass 500g moving with a velocity of 10m/s collides with another ball of mass 250g.after the impact,the second ball moved off with a velocity of 8m/s calculate the final velocity of the first ball.
What are the applications of electron microscope. : quantum physics
What is the force needed to accelerate a mass of one kilogram one meter per second per second?
What are the steps to the scientific notation?
What is the measure of the force of gravity on an object?
Explain the Amorphous ?
Give an example of transverse wave?
What is the homogenous?
What is the use of rectifiers? Point out them one by one.
Explain the three particles that make up an atom?
Why does fountain pen filler drew up ink ?
General Physics 
