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Give one advantage of a scanning electron microscope over a transmission electron microscope?
The SEM has become more popular than the TEM as it can make images of high resolution.
Greater clarity and three dimensional qualities and needs less sample preparation.
Q. A screen is placed 90 cm from an object. The image of the object on the screen is formed by a convex lens at two different locations separated by 20cm. Determine the focal lengt
How to calculate n factor of disproportion reaction? Total number of electron change divided by no. of moles of reactant This is conventional method Total electron chan
Speed of light (in vacuo); c The speed on which electromagnetic radiation propagates within a vacuum; it is described as 299 792 458 m/s.
What do you mean by pure spectrum? What is an impure spectrum?
An express train, traveling at 36.0 m/s, is accidently sidetracked onto a local train track. The express engineer spots a local train exactly 100 m ahead of the same track and trav
Q. What percentage of a given radioactive substance will be left after 5 half -life periods? The residual part of radioactive substance = ( ½ ) 5 Therefore the percentage
In a pulley system the eqn for length of inextensible string is y plus sq. root of x^2+h^2=constant ? how to differentiate y plus sq. root of x^2+h^2=constant to get vel & accn rel
The decrease of mass is related to the binding of the individual particles together inside the nucleus. Therefore every stable nucleus has a mass which is less than the total ma
x-ray and e ray
Q. State Kirchoff's second law in electricity? Kirchoff's second law (voltage law) the algebraic total of the products of resistance as well as current in each part of any
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