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What is radioactivity?
Radioactivity: The process of spontaneous disintegration of the nuclei of heavy elements with the emission of certain radiations is known as natural radioactivity.
The nuclei of certain elements with atomic number more than 82 disintegrate by emitting alpha (α ), beta (β ) and gamma (c ) rays. This phenomenon is called radioactivity.
Silicon has 1.45 x 10 10 free electrons/cm 3 at room temperature. If you wanted to have 3x10 6 as many electrons from arsenic doping as thermal free electrons from silicon at ro
What should be the length of the dipole antenna for a carrier wave of Frequency 3 X 1O 8 Hz? Define 'electric line of force' and give its two important properties.
a) A charge Q is placed at the centre of a cube. determine the flux of the electric field through the six surfaces of the cube. b) Determine the magnitude of the electric field
what is necol prism and give construction and working
How do i get physics homework help?
State and explain laws of transverse vibrations in stretched strings. Describe how do you verify them using sonometer.
A steam turbine takes in saturated steam at 300 C and outputs steam at 4 bar. If the efficiency of the turbine is 65%, calculate: a. The final composition (vapor vs. Liquid) of
With the help of a diagram, show the biasing of a light emitting diode (LED). Give its two benefits over conventional incandescent lamps.
Draw a single stage amplifier circuit using JFET Circuit of a Single Stage Common Source N-channel JFET amplifier using self-bias is shown in figure
Q. Illustrate what are the characteristics of dead stars? Answer:- Dead stars are typically cold balls of material in empty space. A teaspoonful of white dwarf substance w
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