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Define the term scanning electron microscope.
Scanning electron microscope:
The scanning electron microscope (SEM) is a form of electron microscope which images the sample surface through scanning this with a high-energy beam of electrons into a raster scan pattern. The electrons interact along with the atoms which make up the sample producing signals which contain information regarding the sample's surface topography, composition and some other properties as like electrical conductivity.
Monochromatic light (single wavelength) falls on two narrow slits S1 and S2 which are very close together acts as two coherent sources, when waves coming from two coherent sources
Describe Guass law and measure electric field at all possible points due to (i) Charged Sphere (Hollow Sphere) (inside, outside and on the surface of the sphere) (ii) Charge
A triode valve which is acting as an amplifier gives a voltage gain of 30. If anode resistance is 20 K ? for valve and load resistance is 60 K ?, what is value of amplification fac
In forced oscillation of a particle, the amplitude is maximum for a frequency ω1 of the force while the energy is maximum for a frequency ω2 of the force, then what is relations
Right-hand rule: A trick for right-handed coordinate systems to find out which way the cross product of two 3-vectors will be directed. There are few forms of this rule, and t
si el numero atomico del sodio es 11 y su numero de masa es 22,diga¿cuantos electrones,protones y neutrones respectivamente,tiene su atomo neutro?
An ideal Rankine cycle uses water as a working fluid, which circulates at a rate of 80 kg/s. The boiler pressure is 6 Mpa, and the condenser pressure is 10 kpa. The water enters th
a ball is thrown horizontally from a point 100 m above the ground with a speed of 20 m/sec .find the time it takes to reach the ground...
Phenomenon of interference of water waves 1. Arrange two identical adjacent pins (S1 and S2) vibrating in a ripple tank with the same frequency. 2. In the figure S and S ar
Determine the Magnitude The cantilevered beam shown below has two force couples acting on it as shown. The value of C1 in Newtons is given in P25. Determine the magnitude of
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