GK quiz

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Q.1 What change will happen to a bowl of ice and water kept at exactly zero degree Celsius?
      a) All ice will melt
      b) All water will become ice
      c) No change will happen
      d) Only a part will melt
 

Answer:-C

Q.2 Bats can fly in the dark due to
       a) They can see the object in dark
       b) They have weak legs and are likely to attacked by predators
       c) They generate flash of light
       d) They generate ultrasound waves
Answer:-D

Q.3 The propagation of sound waves in gas involves
       a) Adiabatic compression and rarefaction
       b) Isothermal compression and rarefaction
       c) Isochoric compression and rarefaction
       d) Isobaric compression and rarefaction
Answer:-A




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