1. Gamma rays can cause
2. The substance which conducts current in the solid state is
3. Which set of condition represents the easiest way to liquify a gas?
4. What is colour of light related to
5. What principle explains the working of the hydraulic brakes in automobiles?
6. The best conductor of heat among the following is
7. what is viewed through an electron microscope?
8. what apparatus is used to locate a submerged object?
9. The instrument which uses sound waves to measure the depth of oceans is
10. Which combination of color is the most convenient during day and night time?
11. The instrument that measures and records the relative humidity of air is
12. The shape of our milky way galaxy is
13. The different color of different stars are due to variation of
14. The fundamental scientific principle in the operation of battery is
15. Instrument used to measure the force and velocity of the wind is
16. Wollen clothes keep the body warm because
17. If the length of a simple pendulum is halved then its period of oscillation is
18. Mist is caused by
19. When a barometer reading suddenly recedes, it indicates that climate
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