Advertisements
Advertisements
प्रश्न
When a piece of wood is suspended from the hook of a spring balance, it reads 70 gf. The wood is now lowered into water. What reading do you expect on the scale of spring balance?
Advertisements
उत्तर
The reading on the spring balance will be zero because wood floats on water and while floating the apparent weight = 0.
APPEARS IN
संबंधित प्रश्न
State the principle of floatation.
A hollow metal cylinder of length 10 cm floats in alcohol of density 0.80 g cm-3, with 1 cm of its length above it. What length of cylinder will be above copper sulphate solution of density 1.25 g cm-3?
Explain the following:
An egg sinks in fresh water but floats in a strong solution of salt.
Explain the following:
Icebergs floating in the sea are very dangerous for ships.
State the laws of flotation.
Where do we use lactometers?
Name different types of Hydrometers with their applications.
Differentiate positive & negative buoyant.
