problem 1:

Critically illustrate out the chief defects of spherical lenses.  Find out the situation for the achromatism of two thin lenses when they are in contact.

problem 2:

Develop the condition for the longitudinal spherical aberration to be minimum in case of a pair of co-axial lens system separated by distance d.

problem 3:

Illustrate out the rate of growth and rate of the decay of sound in auditorium and originate the Sabine’s formula for the reverberation time.

problem 4:

Illustrate out the term absorption coefficient. Discuss the different factors affecting acoustics of the buildings and how these can be rectified.

problem 5:

Develop an expression for internal bending moment of beam in terms of radius of the curvature.

problem 6:

Critically discuss the depression of cantilever and develop the expression for young’s modulus of the beam fixed horizontally at one end and loaded at the other end.

problem 7:

Develop the schroedinger time independent and time dependent wave equations.

problem 8:

Demonstrate with appropriate sketch the experimental verification of matter waves by using Davission-Germer experiment.

problem 9:

Compute the De-Broglie wavelength of electron accelerated by potential difference of the 150 V.