Which of the following is not a unit of heat?
(A) Calorie
(B) Phon
(C) Joule
(D) Kcal
The correct answer is Phon. Phon is not a unit of Heat.
Where will it take more time to cook rice?
(A) on the beach
(B) in Shimla
(C) Mount Everest
(D) at the depth of the sea
What happens to the temperature of a liquid when it evaporates?
(A) increase
(B) remain unchanged
(C) grow faster
(D) decrease
During the process of evaporation of liquid the temperature of the liquid decreases because the surface molecules while evaporating take some amount of energy from the other molecules of liquid. Thus, evaporation leads to cooling. Kinetic energy is proportional to absolute temperature.
The reason for the diffusion of light in the atmosphere is?
(A) Carbon dioxide
(B) Water Vapor
(C) Helium
(D) Dust Particles
If a cell is placed in a solution and the net effect is that the cell begins to swell, then it is a solution.
(A) Hypertonic solution
(B) Isotonic solution
(C) Hypotonic solution
(D) Acidic solution
Which of the following substances is made up of only one element?
(A) Glass
(B) Water
(C) Diamond
(D) Sand
Which element is not found in fertilizers?
(A) Hydrogen
(B) Chlorine
(C) Nitrogen
(D) None of these
Which of the following is a greenhouse gas?
(A) Sulfur Dioxide
(B) Methane
(C) Carbon Dioxide
(D) All of these
How many milligrams is one carat of diamond?
(A) 155 mg
(B) 250 mg
(C) 200 mg
(D) 150 mg
The unit of which of the following is not newton-metre?
(A) Force
(B) Energy
(C) Work
(D) kinetic Energy
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