Everyday Science MCQs

Page No. 114

Magnifying power of a simple microscope can be increased by ?


aincreasing focal length of the lens


bDecreasing focal length of the lens


cLens of large aperture


dlens of short aperture



Twinkling of stars is caused by ?


aReflection of light


bPolarization of light


crefraction of light


dInterference of light


View Answer refraction of light

Cusec is a unit of _________?


aArea


bTime


cDistance


dNone of these


View Answer None of these

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


aHoney


bWater


cMilk


dolive oil


View Answer Milk

The temperature of the dead body is_______________?


a0 ‘C


b37 ‘


cRoom Temperature


dTemperature of the place where it is kept



German Silver is an alloy of___________?


aZn + Ni


bCu + Zn


cCu + Ni


dCu + Sn


View Answer Cu + Ni

Parsec is a unit of ___________?


aEnergy


bTime


cPower


dDistance


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


bNuclear reaction


cFission nuclear reaction


dFusion nuclear reaction



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


bInfrared waves


cUltrasonic


dsuper sonic


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


b12 feet


c4 feet


d3 feet


View Answer 3 feet

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