**In a fission nuclear reaction, a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more nuclei combine to form a heavy nucleus. This reaction is called:**A) Chemical ReactionB) Nuclear ReactionC) Nuclear FusionD) None of these Show Answer Correct Answer: C – Nuclear Fusion
**Night vision is possible with the help of:**A) Red LightB) Violet LightC) Infrared RaysD) Ultraviolet Light Show Answer Correct Answer: C – Infrared Rays
**Parsec is a unit of:**A) EnergyB) TimeC) PowerD) Distance Show Answer Correct Answer: D – Distance
**Myopia is a defect of human eye. It can be corrected by using a lens called:**A) Convex LensB) Concave LensC) Cylindrical LensD) Plano-convex Lens Show Answer Correct Answer: B – Concave Lens
**German Silver is an alloy of:**A) Zinc and NickelB) Copper and ZincC) Copper and NickelD) Copper and Tin Show Answer Correct Answer: C – Copper and Nickel
**Walnuts can be broken in the hand by squeezing two together but not one. It is because of:**A) Work doneB) PowerC) EnergyD) Force Show Answer Correct Answer: D – Force
**The Continent Antarctica lies at the:**A) North PoleB) South PoleC) Middle of the EarthD) Equator Show Answer Correct Answer: B – South Pole
**The temperature of the dead body is:**A) 0°CB) 37°CC) Room temperatureD) Temperature of the place where it is Show Answer Correct Answer: D – Temperature of the place where it is
**Lactometer is a type of hydrometer which is used to measure the specific gravity of:**A) HoneyB) WaterC) MilkD) Olive Oil Show Answer Correct Answer: C – Milk
**The measurement of rainfall is made by an instrument known as:**A) HygrometerB) BarometerC) HydrometerD) Rain gauge Show Answer Correct Answer: D – Rain gauge
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