Basic Science Practice Question and Answer
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Q: Filling helium in balloons is considered more useful than hydrogen, because?
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611b631cccbc2b477b6dc0be- 1it is cheapfalse
- 2less heavyfalse
- 3more flying abilityfalse
- 4it does not form explosive mixture with airtrue
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Answer : 4. "it does not form explosive mixture with air"
Q: The approximate percentages of oxygen, nitrogen, and carbon dioxide in pure air on the Earth's atmosphere are:
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5ff6bac0d9d7f36ecf2a38e3- 10.03%, 21% and 78% respectivelyfalse
- 278%, 21% and 0.03% respectivelyfalse
- 321%, 78% and 0.03% respectivelytrue
- 421%, 7.8% and 0.03% respectivelyfalse
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Answer : 3. "21%, 78% and 0.03% respectively"
Q: Image are formed between two parallel mirrors?
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601402bc5beea84b8ecebf68- 12false
- 24false
- 38false
- 4Eternaltrue
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Answer : 4. "Eternal"
Q: Which of the following major diseases is caused by ultraviolet radiations?
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609525d6909e132f011994a8- 1Liver cancerfalse
- 2Skin cancertrue
- 3Neurological disorderfalse
- 4Blood cancerfalse
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Answer : 2. "Skin cancer "
Q: S. What is the unit of force in I.
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5fc9cbfcd0af4c56f5f06931- 1Joulefalse
- 2Newtontrue
- 3Wattfalse
- 4Cubic centimetersfalse
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Answer : 2. "Newton"
Q: What will be the thermal conductivity of heavy soils with high organic content?
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604deb39e147c16b2869c770- 1lesstrue
- 2morefalse
- 3No relationfalse
- 4None of thesefalse
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Answer : 1. "less"
Q: Why does the sun appear red when rising and sinking?
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5fc9c1cfb3b23538af75b46f- 1radiationfalse
- 2Water vaporfalse
- 3Dust particlesfalse
- 4scatteringtrue
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Answer : 4. "scattering"
Q: Which of the following represents the equation for position-time relation?
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608278db60a06a7ffdaa9912- 1$$ {2as={v^{2}-{u^{2}}}}$$false
- 2$$ {s=ut+{1\over 2}{at^{2}}}$$true
- 3v = u + atfalse
- 4V = u + atfalse
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Answer : 2. "$$ {s=ut+{1\over 2}{at^{2}}}$$"
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