WBCS.LIVE practice question

An iron ball is heated. The percentage increase will be largest in

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. density
  2. surface area
  3. diameter
  4. volume

Correct answer and explanation

Correct answer: volume

Explanation: āœ… Correct Answer: D) volume šŸ“š Explanation: When a solid object like an iron ball is heated, all its dimensions increase. However, 'volume' increases as the cube of the change, while surface area only increases as the square. Therefore, the percentage increase in volume is always the largest of all physical properties. This is a fundamental principle of how materials expand with heat.