Water droplets form on the outer surface of the glass tumbler filled with cold water due to
A) evaporation
B) condensation
C) boiling
D) melting
1 Answers
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A glass bottle completely filled with water is kept in the freezer. Why does it crack?
Correct answer is (C) Water expands on freezing
2 Answers 3 views
If the difference between the outer radius and the inner radius of a ring is 14 cm, then what is the difference between is outer circumference and inn
Correct Answer - 88 cm
2 Answers 1 views
If the thickness of a hermispherical bowl is 12 cm and its outer diameter is 10.24 m, then find the inner surface area of the hemisphere. (Take `pi=3.
Correct Answer - 20 cm
2 Answers 3 views
Forming tiny droplets and clouds by water vapour is called …………
B) condensation
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The water droplets condensed on the surfaces of window – panes, flowers, grass etc are known as ……………………..
Correct option is B) dew
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Condensed and floating water droplets in the air is called …………………..
Correct option is B) fog
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Refractive index of glass relative to water is 9/8. The refractive index of water relative to glass is …………………
Correct option is D) 8/9
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The refractive index of glass for light going from aif’to glass is 3/2. The refractive index of air for light going from glass to air ………………….
Correct option is C) 4/6
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The phenomenon known by the project work through the polythene cover wrapped up plant, which secretes water droplets on the polythene cover layer.
(B) Transpiration
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We can observe water droplets on the outer surface of a glass containing ice cold water. Because
D) condensation of water vapour in the air.
2 Answers 1 views