Advertisements
Advertisements
Question
State true or false. If false, correct the statement.
A substance which contains less number of molecules per unit volume is said to be denser.
Options
True
False
Solution
False
Correct statement: A substance which contains more number of molecules per unit volume is said to be denser.
APPEARS IN
RELATED QUESTIONS
The density of a liquid decreases with increase in its temperature.
Arrange the following substances in order of their increasing density:
Iron, Cork, Brass, Water, Mercury.
How does the density of a liquid (or gas) vary with temperature?
A given quantity of a liquid is heated. Which of the following quantity will vary and how?
(a) mass, (b) volume and (c) density
The density of air is 1.28 g/Iitre. Express it in g cm-3
The density of air is 1.28 g/Iitre. Express it in kg m-3
Two spheres of same size are made from copper and iron respectively. Find the ratio between their masses (Density of copper is 8,900 kg/m and iron is 7,800 kg/m3 ).
A liquid having a mass of 250 g fills a space of 1000 cc. Find the density of the liquid.
A sphere of radius 1cm is made from silver. If the mass of the sphere is 33g, find the density of silver (Take π = 3.14).
Questions based on Higher Order Thinking Skills:
There are three spheres A, B, C as shown below. Sphere A and B are made of same material. Sphere C is made of a different material. Spheres A and C have equal radii. The radius of sphere B is half that of A. Density of A is double that of C.
Now answer the following questions.
- Find the ratio of masses of spheres A and B.
- Find the ratio of volumes of spheres A and B.
- Find the ratio of masses of spheres A and C.