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During summer, water kept in an earthen pot becomes cool because of the phenomenon of
Anonymous Quiz
19%
Diffusion
48%
Evaporation
19%
Transmission
14%
Osmosis
Which of the following has the strongest interparticle forces at room temperature?
Anonymous Quiz
42%
Oxygen
17%
Water
21%
Bromine
21%
Iron
Evaporation of a liquid at room temperature leads to a ………….. effect.
Anonymous Quiz
51%
Cooling
49%
Heating
The phenomenon of change of a liquid into the gaseous state at any temperature below its boiling point is called ………………
Anonymous Quiz
29%
Heating
19%
Cooling
44%
Evaporation
8%
Osmosis
Which of the following are covered by a single membrane?
Anonymous Quiz
40%
Mitochondria
33%
Vacoule
20%
Lysosome
7%
Plastid
A particle is moving in a circular path of radius r. The displacement after half a circle would be:
Anonymous Quiz
26%
Zero
39%
πr
31%
2r
4%
None
Area under a υ -1 graph represents a physical quantity which has the unit
Anonymous Quiz
37%
M
31%
R
18%
Q
14%
None
A boy goes from A to B with a velocity of 20 m/min and comes back from B to A with a velocity of 30 m/min. The average velocity of the boy during the whole journey is
Anonymous Quiz
29%
24
34%
26
16%
28
21%
None
👍1
Velocity is defined as ……………. per unit time.
Anonymous Quiz
23%
Distance
59%
Displacement
15%
Speed
3%
Time