1.Can the total energy and linear momentum of a particle moving in one dimension in a constant potential field be measured consecutively with no uncertainty in the values obtained ? Explain.

2.Consider the Schrodinger equation with a potential. Are the eigenfunction of this equation nessessarily periodic? Justify your answer.

3.Which are faster carrier of heat through a nano size metal: electrons or phonons ? Explain

4.Consider two Hermitian operators **A** and** B**, which satisfy the commutation relation [**A**,**B**] =ih. Suppose a system is in an eigenstate of *A*. What can be said of the probability distribution related B explain.

5.What is Optical Tweezer ?

6.A dimensional box containing a electron surffers infinitesimal perturbation and emits a photon of frequency h

7.When you heat a solid nano-material, do the atoms within it vibrate with grater amplitude or greater frequency ? Explain.

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9.What is photonic crystal ? What is photonic band gap ?