Sextant is an instrument used in which of the following ?
1). Gynaecology
2). Navigation
3). Birth control
4). Medical treatment
3. If there were no gravity, which of the following will not be there for a fluid?
4. The capacity of a water heater is measured in
5. Full employment is the level at which there is _____.
7. In a optical fibre cable, the signal is propagated along the
8. The most penetrating radiation out of?the following is
9. The intensity ratio of waves is 25:9. What is the ratio of their amplitudes?