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Q: When a cork and a iron nail are placed in a beaker filled with water, the cork floats while the iron nail is submerged. What is the reason behind it?
  • A. The density of cork is greater than the density of water
  • B. The density of iron nail is more than the density of water
  • C. Mass of iron nail is greater than mass of cork
  • D. Mass of cork is greater than mass of iron nail
Correct Answer: Option B - When a cork and iron nail are placed in a beaker filled with water, the cork floats while the iron nail submerged because the density of the iron nail is greater than the density of the water. So, the cork is floating because density of cork is less than density of water
B. When a cork and iron nail are placed in a beaker filled with water, the cork floats while the iron nail submerged because the density of the iron nail is greater than the density of the water. So, the cork is floating because density of cork is less than density of water

Explanations:

When a cork and iron nail are placed in a beaker filled with water, the cork floats while the iron nail submerged because the density of the iron nail is greater than the density of the water. So, the cork is floating because density of cork is less than density of water