The process by which a solid changes into a liquid is called
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A solid cylinder and a solid cone have equal base and equal height. If the radius and the height be in the ratio of 4 : 3
Let the radius of both solids be r and their heights be h units, According to condition, \(\frac{r}{h}=\frac{4}{3}\\\therefore h=\frac{3r}{4}\) TSA of cylinder = \(2\pi r(r+h)\) TSA of cone = \(\pi r (r+l)\) On comparing the ratios, \(=\frac {2\pi r...
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Nitrogen makes its way back into the atmosphere through a process called
B) Denitrification
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When a solid changes to directly gaseous state, the process is called
B) Sublimation
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In conduction band of solid, there is no electron at room temperature. The solid is ……………
Correct option is: (B) insulator
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Relative density of a liquid = …………… A) weight of the liquid/weight of the solid
C) \(\cfrac{weight\,of\,the\,liquid}{weight\,of\,same\,volume\,of\,water}\)
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The transformation of larva into adult through drastic changes is called …..
C) Metamorphosis
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“To reduce the friction we use solid, liquid and Gaseous state lubricants”. Which lubricant is used in Electric motor to reduce friction ?
Correct option is D) Grease
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On dissolving solid in liquid, ………… particles enter into space between the …………. particles.
B) melting point
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The process of conversion of solid into liquid is A) fusion
Correct option is A) fusion
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Bacterial and fungul enzymes degrades detritus into simpler inorganic substances. This process is called
Correct Answer - C Bacterial and fungal enzymes degrade detritus into simpler inorganic substances by the process of catabolism.
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