Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
What is spontaneous emission? Explain in brief.
Spontaneous emission:
a. This is the process by that a light source as like an atom, molecule, nano-crystal or nucleus into an excited state undergoes a transition to the ground state and then emits a photon.
b. The atoms into the excited state drop to the lower energy state after they have stayed within the excited state for a short duration of time known their life time.
c. Throughout this process photons of energy hν = E2 - E1, that is energy difference in between the two states of the atom, those are emitted.
d. Spontaneous emission of light or luminescence is a basic process which plays a necessary role in various phenomena into nature and forms the basis of several applications, as like fluorescent tubes, plasma display panels, television screens, lasers and light emitting diodes.
what is the importance of si unit
HYSTERESIS LOOP: A ferromagnetic material retains some magnetism after the magnetising force is removed. The BH curve (O to Q) will therefore only be followed once, on initial
Describe the physical significance of curl of a vector function?
Magnification is the ratio of size of image to the size of object. hence it is a dimensionless constant. It has no units. 1/m is not its unit.(1/m is the unit of power=DIOPTRE)
A small ball with a mass of 60.0 g is loaded into a spring gun, compressing the spring by 12.0 cm. When the trigger is pressed the ball emerges horizontally from the barrel ata hei
Write down the differential equation of a damped oscillator, write down the solution for under damped oscillatory motion. Graphically show the variation of amplitude with time. Als
Pressurized Water Nuclear Reactor There are two categories of nuclear reactors. The Pressurized Water Reactor (PWR) and the Boiling water reactor (BWR). Pressurized Water React
Centrifugal force with a beaded chain Secure a length of beaded chain like that frequently used for pull cord on electric light switches or for key chains. Fasten the ends toge
A Neutron Star is formed in the aftermath of a Supernova explosion. The star was originally rotating with a period of 20 days and had a mass of 2x10 30 kg and radius of 6x10 8 m.
Radial is exactly centripetal force?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd