Who invented the battery?
1). Volta
2). Roentgen
3). Faraday
4). Maxwell?
1. A photoelectric cell converts
2. Which of the following instrument is used to measure Soil Water Tension?
4. The period of revolution of a geostationary satellite is
5. If the distance between Sun and Earth becomes double, then the gravitational force on Earth will be
6. Through which light cannot pass?
7. General Dyer, who was responsible for Jallianwalan Bagh massacre, was shot dead by?
8. The four stroke petrol engine Is based on