Science & Technology2012
Consider the following statements: If there were no phenomenon of capillarity
- It would be difficult to use a kerosene lamp.
- One would not be able to use a straw to consume a soft
- The blotting paper would fail to function.
- The big trees that we see around would not have grown
on the Earth. Which of the statements given above are correct?
Explanation
The correct option is 1, 3, and 4 only, as they highlight the critical role of capillarity in various natural and practical phenomena. Capillarity enables kerosene to rise in lamps, facilitating combustion; it allows blotting paper to absorb liquid efficiently; and it's essential for water transport in large trees against gravity, supporting their growth. However, drinking through a straw primarily relies on atmospheric pressure and does not directly depend on capillarity, making statement 2 incorrect. This understanding aligns with principles outlined in standard science curricula, such as those found in NCERT textbooks.
