The time period of a seconds pendulum Is
1). 1 second
2). 2 seconds
3). 5second
4). 15 seconds
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1. Which of the following is optical illusion?
2. Global warming is expected to result in
4. In a Laser (say neon laser) all the atoms emit the light waves of
5. Which of the following pairs of physical quantities have the same dimensions?
6. In which of the following cases kinetic energy is being used in performing work
7. The time period of a pendulum when taken to the Moon would
8. Which one among the following happens when a swing rises to a certain height from its rest position?
9. The commonly used coolant in refrigerators is
10. Amount of water vapour (gaseous) in a given volume of air (cubic metre) is known as: