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Q. What are the uses of an electron microscope?
Uses of electron microscope:
(i) It is utilized in the industry to study the surface of metals, structure of textile fibres, composition of paints etc.
(ii) In medicine as well as biology it is used to study virus, and bacteria.
(iii) In Physics it has been utilized in the investigation of atomic structure and structure of crystals in detail.
Snell's Law: The ratio of sine of angle of incidence to the sine of angle of refraction is constant for all rays passing from one medium to another medium. That is Sini/Sinr
The Josephson effect is a term given to the phenomenon of current flow across two superconductors separated by a very, thin insulating barrier. This arrangement, two superconductor
Define the term multi-mode fibre shortly. Multi-mode fibre: This type of fibre permits more than one mode to travel by this. As this has to permit more number of modes to tr
A ray of light XY strikes a surface of a mirror ABCD at point P. a) Determine the path of the incident ray X-Y-P and the reflected ray P-Z and show this path in all views. (Hin
why deflection magnetometer can not be worked at poles?
Q What is electromagnetic induction? The phenomenon of producing an induced emf because of the changes in the magnetic flux associated with a closed circuit is known as electr
A car of mass 1.35 x 10 3 kg sits on a large piston that has a surface area of 1.23 m 2 . The large piston is linked to a small piston of area 144 cm 2 . What is the weight
The big hill on a roller-coaster ride is 91 m tall. If the mass of the roller-coaster car and its two riders is 314 kg and the maximum velocity reached by this roller-coaster r
Find the value of g by free fall method.
how proton electron hypothesis is rejectrd on the basis of nuclear magnetic dipole moment?
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