Question
Of the first
water In the following question, out of the given four alternatives, select the alternative which best expresses the meaning of the Idiom/Phrase.Solution
The phrase comes from a technical term used to describe diamonds. The degree of brilliance in a diamond is called its “water”, so a “diamond of the first water” is an exceptionally fine diamond.
Lines joining places of equal temperature are calledÂ
Which of the following force holds protons and neutrons inside the nucleus of an atom?
When carbon dioxide gas is passed through lime water, a white precipitate is formed, which dissolves on
passing excess of carbon dioxide. The...
A piece of wood is held under water. The up thrust on it will be:
A cylindrical metal wire is reformed so that its length decreases by 20% with no change of volume. Its
resistance decreases by:
A body of mass 4 kg falls freely from a height of 5 m. What is its kinetic energy just before it hits the ground? (Take g = 10m/s²)
Two parallel wires of length 10 cm each are separated by a distance of 0.5 cm in a liquid. If the distance between them is increased by 2 mm, how much w...
Which of the following is the first organic compound that was synthesised in the laboratory?
An ice block with a piece of lead embedded in it floats in water. If ice melts the water level –
Which of the following solutions will not change the colour of blue litmus paper to red?
 1. Acid solution
2. Base solution
3. Com...
