Basic Science Related Questions

DoThe Best
By DoThe Best October 17, 2015 14:17

1. The absorption of ink by blotting paper involves

A.viscosity of ink
B.capillary action phenomenon
C.diffusion of ink through the blotting
D.siphon action

Answer: Option A

2. Siphon will fail to work if

A.the densities of the liquid in the two vessels are equal
B.the level of the liquid in the two vessels are at the same height
C.both its limbs are of unequal length
D.the temperature of the liquids in the two vessels are the same

Answer: Option D

3. Large transformers, when used for some time, become very hot and are cooled by circulating oil. The heating of the transformer is due to

A.the heating effect of current alone
B.hysteresis loss alone
C.both the heating effect of current and hysteresis loss
D.intense sunlight at noon

Answer: Option C

4. Nuclear sizes are expressed in a unit named


Answer: Option D

5. An aeroplane is flying horizontally with a velocity of 600 km/h and at a height of 1960 m. When it is vertically at a point A on the ground a bomb is released from it. The bomb strikes the ground at point B. The distance AB is

A.1200 m
B.0.33 km
C.3.33 km
D.33 km

Answer: Option A

DoThe Best
By DoThe Best October 17, 2015 14:17
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