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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.
a loaded trunk weighs 80 kn and accelerates uniformly on a level road from 4.5m/s to 9m/s during 4s.if the frictional resistance to motion is 1.625kn , determine the maximum power
The town of Smog, Idaho is located in a river valley and has a footprint of 6 km x 2 km. It has an average daily emission rate of 1000 kg/day of PM 2.5 into the atmosphere from
In a Newton's rings arrangement the diameter of a bright ring is 0.5cm. Determine the diameter of ring if the lens placed on the plane glass plate is replaced by another one having
In a Newton's ring experiment the diameter of n th ring is 0.46 cm it got shrink to a diameter of 0.40 cm when a liquid is given between the plane glass plate and Plano convex len
What do you mean by Normal shift? How can you calculate total internal reflection? Mention an application of total internal reflection.
Why it is in general considered easier to determine the electric potential at a given point in space or at a given set of points in space due to a continuous charge distribution th
Q. Illustrate how are amps and watts related? Answer:- In a nutshell the power calculated in watts dissipated by a resistance is directly proportional to the square of the
Mercury: Atomic number 80 Symbol Hg
A concentric tube heat exchanger is comprised of a thin wall inner tube of 25.4 mm diameter and an outer tube of 47 mm diameter. The heat exchanger is used for cooling lubricating
A gas is compressed from 400 cm3 to 200 cm3 at a constant pressure of 100 kPa. At the same time, 100 J of heat energy is transferred out of the gas. What is the change in internal
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