Q. Why the needle of iron swims on Water surface when it is kept gently?
Solution:
Surface tension is the elastic tendency of a fluid surface which makes it acquire the least surface area possible. Surface tension allows insects, usually denser than water, to float and stride on a water surface.
Related Questions
Q. When a brick put in to the water it absorbs water quickly. Identify the phenomenon behind this
View SolutionQ. The source of energy which are formed in earth over millions of years and which get deleted due to their continuous use but do not replenished are known as
View SolutionQ. Substance used for producing heat energy are called
View Solution
Get Question Bank
Strengthen Your Practice with our comprehensive question bank.
