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Q Define threshold frequency?
The minimum frequency of incident radiation lower which the photoelectric emission isn't possible completely but high the intensity of incident radiation may be. The threshold frequency is dissimilar for different metals.
I''m transmitting microwave radiation from antenna to satellite..so when radiation(photons) is transmitted,how they interact with the molecules in the atmosphere layer by layer..I
Two resistances have lengths in the ratio 1:4 and radius 1:2,specific resistances in ratio 3:1. compare their resistances. Solution) Given lengths l1=1 l
Pressurized Water Reactor: A Pressurized Water Reactor (PWR) in a power station has a negative temperature coefficient. After it has been operating for a long time at a partia
For what purpose do we use Schrodinger equation in our daily life?
Brief about the directory representation in UNIX. A Unix directory is a file having a correspondence among filenames and inodes. A directory is a special file that the kernel m
MANUFACTURING: The resistance element is used as a wire, made from special alloys, which have small low temperature coefficient and good stability against environmental c
Alpha particles are nuclei of: a) Hydrogen b) Helium c) Oxygen d) Nitrogen Ans: Alpha particles are nuclei of helium.
A simple theodolite or astrolabe A simple theodolite or astrolabe is formed by fixing a drinking straw to the base line of a protractor with sealing wax or glue. A plumb line h
Electrical equipment in an office takes a current of 13A from a 240V supply. Estimate the cost per week of electricity if the equipment is used for 30 hours every week and 1kW
Infrared Waves: Infrared wave also known as heat wave. These waves are radiation by hot body at dissimilar temperature.
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