Which of the following is not a vector quantity?
1). Work
2). Force
3). Displacement
4). Velocity
1. The cover of a solar cooker is made of glass because
2. What is the SI unit of Force?
3. Instrument for measuring wind velocity is called
4. Which of the following is optical illusion?
5. In which of the following cases kinetic energy is being used in performing work ?
7. The absolute zero is a temperature at which ________
8. Amount of water vapour (gaseous) in a given volume of air (cubic metre) is known as: