General Science QUESTIONS AND ANSWERS

General Knowledge : General Science QUESTIONS AND ANSWERS :: part24 : 81 to 85

Following General Knowledge Multiple choice objective type questions and answers will help you in TRB, SSC and UPSC 2014 examinations :

81.Sound travels faster in :

dry air then in water

wood than in iron

iron than in air

hydrogen than in water

82.Why do rain bearing clouds look black ?

All light is scattered by them

They reflect the sunlight back into the atmosphere

The large number absorb all the sunlight

There is a lot of dust condensed on the water vapour in these clouds

83.The most significant revolution in physics in the twentieth century was :

Bohrs theory of hydrogen atom

nuclear fusion

Plancks quantum theory and Einsteins theory of relativity

quantum mechanics

84.According to Einsteins theory of relativity, when a body moves with a velocity comparable to the velocity of light, its :

mass and length decrease

mass and length increase

length increases but mass decreases

length decreases but mass increases

85.Tiredness is felt on the top of the mountains because of :

high temperature

low temperature

high pressure outside the body

low pressure outside the body

More General Science QUESTIONS AND ANSWERS available in next pages

Health is the greatest gift, contentment is the greatest wealth -Buddha

Opportunity is missed by most people because it is dressed in overalls and looks like work.- Thomas Edison

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