For which Diode is used
1). modulation
2). oscillation
3). amplification
4). purification
2. What is the term for the maximum number of individuals that an area can support indefinitely?
3. Which of the following is the unit of electric current ?
4. Which of the following is an example of simple harmonic motion?
6. Why is weightlessness experienced while orbiting the earth in space ships ?
7. If the diameter of a capillary is doubled then the rise of water in it will be