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

With a neat energy level diagram describe the construction and working of He-Ne Laser. What are the merits and demerits?

Explain construction and working of cathode ray tube.

What is holography? Differentiate between holography and photography.

An electron is accelerated through a potential difference of 18 kV in a colour TV cathode ray tube. Calculate the kinetic energy and speed of electron.

Explain construction and working of He:Ne laser with neat label diagram. 

Explain the construction and reconstruction of hologram with neat diagram. 

Draw the block diagram of cathode ray tube and briefly explain its parts. 

What is the difference between photography and holography?
Explain holography technique to obtain 3D image of an object. 

Explain different types of carbon nanotubes and give its applications.

Explain how A.C voltage and its frequency is measured using CRO.

What is grating and grating element? 

Explain the experimental method to determine the wavelength of spectral line using diffraction grating.
What is the highest order spectrum which can be seen with monochromatic light of wavelength 6000 A^o by means of a diffraction grating with 5000 lines/cm?

What is diffraction grating? What is the advantage of increasing the number of lines in the grating? 

Discuss the Fraunhoffer diffraction at single slit and obtain the condition for minima.
In plane transmission grating the angle of diffraction for second order principal maxima for wavelength 5 x 10^-5 is 35^o. Calculate number of lines/cm for this diffraction grating. 

What is diffraction grating and grating element? Explain experimental method to determine the wavelength of the spectral line using diffraction grating?

Derive the condition for absent spectra in grating.

What is Rayleigh’s criterion of resolution? Define resolving power of grating?

What is Rayleigh’s criterion of resolution? Define resolving power of grating?

How is Lissajous figures used to measure unknown frequency?

Explain the experimental method to determine the wavelength of spectral lines using grating. A diffraction grating has 5000 lines / cm and the total ruled with is 5cm. Calculate dispersion for a wavelength of 5000 A0 in the second order.