Question

(a) Explain the construction with figure and working principle of Electron Microscope. (b)A particle of mass 5.0 mg moves will speed of 8.0 m/sec calculates de-Broglie wavelength?​

Answer 1

Answer:

a) An electron microscope uses an 'electron beam' to produce the image of the object and magnification is obtained by 'electromagnetic fields'; unlike light or optical microscopes, in which 'light waves' are used to produce the image and magnification is obtained by a system of 'optical lenses'.

b) particle start motion from rest according to formula θ=(t4/60)- (t/4). Then the angular velocity and angular acceleration at time t=10s.

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