1. To get P-type semiconductor we add impurity from :

2. Which of the following quantities is non-zero at the mean position for a particle
executing SHM?

3. The concept of entropy was introduced by the scientist :

4. 1 st superconductor was discovered in year :

5. Triple point of water is :

6. Temperature of –273° C on Kelvin scale is :

7. If stress is increased beyond the elastic limit and change in solid is permanent , this
behavior is called

8. The ratio of total energy of a barmonic oscillator to is average energy with respect
to position will be :

9. In the isothermal process, one of the following is constant :

10. What will be the percentage change in the time period of a simple pendulum if its
length is increased by 5 % ?