_______________of a material is defined as the minimum amount of the work necessary to remove a free electron from the surface of the material.
1). The electro-repulsive force
2). The coulomb factor
3). The power factor
4). The work function
1. Name the process of production of energy in the Sun
2. For which of the following substances, the resistance decreases with increase in temperature?
3. Which of the following is a renewable resource of energy?
4. A permanent magnet can affect
6. A cyclist leans inwards when he is negotiating a curve so that
7. A man cannot see clearly beyond 10 meters. The disease he suffers from :
8. Which of the following is an example for cantilever beam?
10. The magnifying power of an astronomical telescope can be decreased by