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What are the pumping schemes?
Pumping Schemes:
a. Optical pumping through photons
b. Electrical pumping through electric glow discharge/electric current/electron beam
c. Chemical reaction
d. Nuclear fission
It is based on the photovoltaic effect. One of the semiconductor regions is made so thin that the light incident on it reaches the p-n junction and gets absorbed. It changes solar
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Cathode rays are made up of: (1) Positively charged particles (2) Negatively charged particles (3) Neutral particles (4) None of these Ans: (2)Negatively charged pa
Write down the factors which force a system to oscillate?
Electromagnetic radiations: What are the common features among all the Electromagnetic radiations? Ans: 1. They all can be described in terms of oscillating electric and ma
A thin convex lens of focal length 0.1m and a thin concave lens of focal length 0.1m are placed co-axially in contact. What is the total power of the combination?
how Michelson interferometer can be used to measure the wavelength of sodium light.
If and show that they constitute a possible electromagnetic field.
Why the work called scalar quantity?
When reverse bias is enhanced the electric field at the junction also enhances. At some stage the electric field becomes so high that it breaks the covalent bonds building electron
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