Advertisements
Advertisements
प्रश्न
Describe an experiment to determine the density of the material of a coin.
Advertisements
उत्तर
The density of the material of a coin is determined by the following experiment:
- We know density is mass per unit volume. So, first mass of the coin is measured by a common beam balance. Let it be M gram.
- Volume of the coin is measured by a measuring cylinder as shown in the figure given below.
- Take a measuring cylinder and fill it partly with water.
- Note the level of water. Let it be V1 mL.
- Tie the coin with a thread and gently lower the coin inside the measuring cylinder. Take care that no water splashes out.
- Note the level of water again. Let it be V2 mL.
- Find the volume of the coin (V) by subtracting V1 from V2.
V = V2 - V1
Density of coin is calculated by the formula: Density = `"Mass"/"Volume"`
D = `"M"/"V" "g cm"^(-3)`
APPEARS IN
संबंधित प्रश्न
What happens to the buoyant force as more and more volume of a solid object is immersed in a liquid ? When does the buoyant force become maximum ?
Name the S.I. unit of density. How is it related to g Cm-3?
What is the unit of relative density?
Explain the following statement:
Sleepers are laid below the rails.
State the laws of liquid pressure.
The pressure P1 at the top of a dam and P2 at a depth h form the top inside water (density p) are related as :
A simple U tube contains mercury to the same level in both of its arms. If water is poured to a height of 13.6 cm in one arm, how much will be the rise in mercury level in the other arm?
Given : density of mercury = 13.6 x 103 kg m-3 and density of water = 103 kg m-3.
Calculate the hydrostatic pressure exerted by water at the bottom of a beaker. Take the depth of water as 40 cm, the density of water 1000 kgm−3 and g = 9.8 ms−2.
Select the correct option:
When a body is wholly or partially immersed in a liquid, it experiences a buoyant force which is equal to:
How is thrust different from pressure?
