28-03-2014, 02:44 PM
ADINA INSTITUTE OF SCIENCE & TECHNOLOGY SAGAR (MP) PUT EXAM 2013
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NOTE- Attempt any four question.
Q.1 (a) what is phase & group velocity? Explain the Compton shift. How does it support photon nature?
(b) State the uncertainty principle. Show that the energy levels are in discrete form, when particle enclosed in a one dimensional potential well also find Eigen function.
Q. 2(a) what is interference? Draw neat diagram of Michelson’s interferometer and explain formation of different types of fringes.
(b) Write difference between Fresnel & fraunhofer diffraction. Obtain expression for the intensity due to diffraction at a single slit.
Q.3 (a) Explain the construction and working of Betatron.
(b) Give construction and working of Bainbridge mass spectrograph.
Q.4 (a) what is Hall Effect? Obtain the expression for Hall voltage and Hall coefficient.
(b) Draw the neat diagram of energy band for PN junction diode when it is-
1) Unbiased 2) Forward biased 3) Reverse biased
Q, 5(a) Explain the construction and working of He-Ne OR co2 LASER?
(b) What is pumping? What do you mean by acceptance angle and acceptance cone?