General Knowledge Questions And Answers :: General Science: part18



General Knowledge : General Science QUESTIONS AND ANSWERS :: part18 : 76 to 80

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

76.The quantum theory was first enunciated by :

Niel Bohr
Albert Einstein
Max Planck
Max Born

77.Which one of the following metals has the highest density ?

Gold
Iron
Platinum
Lead

78.Why does radio perception improve slightly during the night ?

Unlike the day time, only a few radio stations broadcast during the night.
The outside noise is reduced very much at night.
Sunlight affects radio broadcast to some extent.
The magnetic field of the earth acts with reduced intensity during the night thereby reducing its impact on broadcasts.

79.Small drops of a liquid are spherical in shape because

the earth attracts all the particles of the drop equally.
for a given volume, the surface area of a sphere is maximum.
the surface energy is maximum for the spherical shape.
the surface energy is minimum for the spherical shape.

80.In a pond, a boat is moving. At one place in the middle, the water begins to enter the boat through a hole. At the point, the boat is ready to sink, the water level will

decrease
increases
remain the same
depend on the structure of the boat

More General Science QUESTIONS AND ANSWERS available in next pages

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