BE Chemical Engineering Semester 2 (FE First Year) - University of Mumbai Question Bank Solutions for Applied Physics 2

If 𝑨=𝒙^𝟐𝒛 𝒊−𝟐𝒚^𝟐𝒛^𝟐𝒋+𝒙𝒚^𝟐𝒛𝒌. Find 𝛁.𝑨 at point (1,-1,1).

A newtons rings setup is used with a source emitting two wavelength λ1=6000A0 and λ2=4500 A0. It is found that nth dark ring due to 6000A0 coincides with (n+2)th dark ring due to 4500 A0. If the radius of curvature of the lens is 90 cm, find the diameter of nth dark ring of 6000A0.

Derive Maxwell’s two general equations in integral and differential form. 

Write Maxwell’s equation and give its physical significance.

What is monomode and multimode fibre? Explain the term V-number, Calculate the number of modes of a step index optical fibre of diameter 40 𝝁𝒎 will transmit as its core and cladding refractive indices are 1.5 and 1.46 respectively. Wavelength of light used is 1.5 𝝁𝒎.

Derive Maxwell’s Third Equation.

With neat diagram explain construction and working of scanning electron microscope. 

With a neat diagram explain the construction and working of scanning electron microscope.

Derive Bethe’s Law for electron refraction.

Explain construction and working of Nd: YAG laser. 

With neat diagram explain construction and working of atomic force microscope. 

Explain construction and working of atomic force microscope.

Explain construction and working of Nd:YAG LASER. 

Draw the block diagram of an optical fibre communication system and explain function of each block.

Explain the concept of electrostatic focusing in electron impacts. 

Write a note on electrostatic focusing.

What are the different techniques to synthesise nanomaterial? Explain one of them in detail.

Describe in detail the concept of anti-reflecting film with a proper ray diagram.

What are different techniques to synthesis nanomaterial?
Explain one of them in detail. 

Write difference between LED and Laser Diode.