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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.
A ray of light falls on a glass slab of refractive index u.if the reflected and refracted rays are mutually perpendicular to each other,find the angle of incidence. Ans) let i b
Faraday's second law of electrolysis: The charge Q needed to deposit or liberate a mass m is proportional to the charge z of the mass, the ion and inversely proportional to th
Q. What is dielectric polarization? The arrangement of the dipole moments of the permanent or induced dipoles in the direction of applied electric field is called polarisation
Q. If 6.25 X 10 18 electrons flow through a given cross-section in unit time, find the current. Solution: Current I = q / t = ne / t = (6.25 X 10 18X 1.6 X 10 -19) / 1 = 1 A
a. Measure the force among two linear, parallel, long conductors carrying currents in opposite direction. b. Measure self inductances and mutual inductances among two co-axial s
Noise: An undesirable and unpleasant sound that makes harmful effects on our auditory system is known as noise.
Energy is transmitted in a plane in two mutually perpendicular directions. Example : Wave propagating on the surface of water.
What are coiled roped and woven/knitted optics? Simply woven or braided ropes manufactured along with thin solid core fiber optics, in place of hemp or nylon. Due to the stra
explain with the aid of a diagram what is meant by the moment of a force about point
1. You are trying to observe a 500 Hz signal of amplitude 2 mV in the presence of an interfering 4.0 kHz signal also of amplitude 2mV. Use a MATLAB .m script to plot the waveform y
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