Everyday Science MCQs

Page No. 114

Magnifying power of a simple microscope can be increased by ?


aincreasing focal length of the lens

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bDecreasing focal length of the lens

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cLens of large aperture

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dlens of short aperture

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Twinkling of stars is caused by ?


aReflection of light

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bPolarization of light

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crefraction of light

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dInterference of light

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View Answer refraction of light

Cusec is a unit of _________?


aArea

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bTime

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cDistance

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dNone of these

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View Answer None of these

Lactometer is a type of Hydrometer which is used to measure the specific gravity of _________?


aHoney

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bWater

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cMilk

✓


dolive oil

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View Answer Milk

The temperature of the dead body is_______________?


a0 ‘C

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b37 ‘

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cRoom Temperature

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dTemperature of the place where it is kept

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German Silver is an alloy of___________?


aZn + Ni

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bCu + Zn

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cCu + Ni

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dCu + Sn

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View Answer Cu + Ni

Parsec is a unit of ___________?


aEnergy

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bTime

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cPower

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dDistance

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View Answer Distance

In a fission nuclear reaction , a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear reaction is called ?


aChemical Reaction

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bNuclear reaction

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cFission nuclear reaction

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dFusion nuclear reaction

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The principle used in radar is the same as that of Sonar. In radar we use radio waves ; whereas in sonar we use ?


ared waves

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bInfrared waves

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cUltrasonic

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dsuper sonic

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View Answer Ultrasonic

A six feet tall lady wants to see her full image in a plane mirror . The minimum length of the mirror will be ?


a6 feet

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b12 feet

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c4 feet

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d3 feet

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View Answer 3 feet

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