0

Guest

Courses New

11. You have a bag of cotton and an iron bar, each indicating a mass of 100 kg when measured on a weighing machine. In reality, one is heavier than other. Can you say which one is heavier and why?

11. You have a bag of cotton and an iron bar, each indicating a mass of 100 kg when measured on a weighing machine. In reality, one is heavier than other. Can you say which one is heavier and why?

Grade:12th pass

1 Answers

Pawan Prajapati
askIITians Faculty 60787 Points
3 years ago
We know that density of cotton is lesser than that of an iron bar. Hence, for same mass of 100 kg, the volume of cotton is greater than that of iron bar. Due to this, while weight in air using a weighing machine, the upthrust due to air is more on cotton and less on iron bar. As a result, true weight and consequently, the true mass of cotton must be greater than that of iron bar. Thus, cotton is heavier than the iron bar.

Think You Can Provide A Better Answer ?

Other Related Questions on 9 grade science

View all Questions »

ASK QUESTION

Get your questions answered by the expert for free

Answer and earn gift vouchers

Win Gift vouchers upto Rs 500/-

View courses by askIITians

Design classes One-on-One in your own way with Top IITians/Medical Professionals

Click Here Know More

Complete Self Study Package designed by Industry Leading Experts

Click Here Know More

Live 1-1 coding classes to unleash the Creator in your Child

Click Here Know More

a Complete All-in-One Study package Fully Loaded inside a Tablet!

Click Here Know More