GS41-50

General Science Mock Test

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41.The sky appears blue due to-
Scattering of light
Reflection of light
Refraction of light
Diffraction of light

42. The minimum height of a plane mirror to see the full image of a person is equal to-
the height of the person
half the height of the person
one-fourth the height of the person
double the height of the person

43. Which one among the following will you put in to pure water in order to pass electric current through it?
Mustard Oil
Sugar
Lemon Juice
Kerosene

44. A close bottle containing water at room temperature is taken to the Moon and than the lid is opened. The water will
boil
freeze
decompose into oxygen and hydrogen
not change at all

45. The blackboard seems black because it
does not reflect any colour
reflects every colour
absorbs black colour
reflects black colour

46.A body is charged negatively. It implies that
it has lost some of its protons
it has lost some of its electrons
it has acquired some electrons from outside
None of these

47. In scuba-diving, while ascending towards the water surface, there is a danger of bursting the lungs. It is because of
Boyle's law
Archimedes' principle
Gay-Lussac's law of combining volumes
Gram's law of diffusion`

48. Viewfinders, used in automobiles to locate the position of the vehicles behind, are made of
convex mirror
convex mirror
concave mirror
parabolic mirror

49. Which one among the following would expand the most on being heated?
Air
Water
Alcohol
Glass

50. If a ship moves from freshwater into seawater, it will
rise a little higher
sink completely
sink a little bit
remain unaffected

This set of questions are contributed by Dr. S. K. Agrawalla, Lecturer, Dept of APAB
and the page is developed by our student Mr. Neelamadhaba Panigrahi, 2nd semester ICT and Ex-student, Miss Priyadarsini Mishra
Thank U all!!!