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A wooden block weighs 10 N in air and 6 N in water when fuly immersed.. What is the buoyant force acting on the block?
- a)4 N
- b)6 N
- c)10 N
- d)16 N
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A wooden block weighs 10 N in air and 6 N in water when fuly immersed....
We know, according to archimedes principle,
Weight of Liquid displaced = Weight of body in air - Weight of body in liquid when immersed
Weight of liquid displaced = 10 − 6 = 4N
Weight of Liquid displaced = Weight of body in air - Weight of body in liquid when immersed
Weight of liquid displaced = 10 − 6 = 4N
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A wooden block weighs 10 N in air and 6 N in water when fuly immersed....
Understanding Buoyant Force
The buoyant force is the upward force exerted by a fluid on an object that is fully or partially immersed in it. This force is responsible for making objects feel lighter in water compared to their weight in air.
Given Data
- Weight of the wooden block in air: 10 N
- Weight of the wooden block in water: 6 N
Calculating the Buoyant Force
To find the buoyant force acting on the block, we can use the following relationship:
- Buoyant Force = Weight in air - Weight in water
Let's calculate it:
- Weight in air = 10 N
- Weight in water = 6 N
- Buoyant Force = 10 N - 6 N
Result of the Calculation
- Buoyant Force = 4 N
Conclusion
The buoyant force acting on the block is 4 N.
Correct Answer
The options provided were:
- a) 4 N
- b) 6 N
- c) 10 N
- d) 16 N
The correct answer is option 'A', not 'B'.
Reasoning Behind the Choice
- The block weighs less in water due to the upward buoyant force acting against gravity.
- The difference in weight (10 N - 6 N) indicates the buoyant force, which is indeed 4 N.
In summary, the buoyant force is the reason the block appears lighter in water, and it is calculated by the difference in weight between air and water.
The buoyant force is the upward force exerted by a fluid on an object that is fully or partially immersed in it. This force is responsible for making objects feel lighter in water compared to their weight in air.
Given Data
- Weight of the wooden block in air: 10 N
- Weight of the wooden block in water: 6 N
Calculating the Buoyant Force
To find the buoyant force acting on the block, we can use the following relationship:
- Buoyant Force = Weight in air - Weight in water
Let's calculate it:
- Weight in air = 10 N
- Weight in water = 6 N
- Buoyant Force = 10 N - 6 N
Result of the Calculation
- Buoyant Force = 4 N
Conclusion
The buoyant force acting on the block is 4 N.
Correct Answer
The options provided were:
- a) 4 N
- b) 6 N
- c) 10 N
- d) 16 N
The correct answer is option 'A', not 'B'.
Reasoning Behind the Choice
- The block weighs less in water due to the upward buoyant force acting against gravity.
- The difference in weight (10 N - 6 N) indicates the buoyant force, which is indeed 4 N.
In summary, the buoyant force is the reason the block appears lighter in water, and it is calculated by the difference in weight between air and water.
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A wooden block weighs 10 N in air and 6 N in water when fuly immersed.. What is the buoyant force acting on the block?a)4 Nb)6 Nc)10 Nd)16 NCorrect answer is option 'B'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about A wooden block weighs 10 N in air and 6 N in water when fuly immersed.. What is the buoyant force acting on the block?a)4 Nb)6 Nc)10 Nd)16 NCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A wooden block weighs 10 N in air and 6 N in water when fuly immersed.. What is the buoyant force acting on the block?a)4 Nb)6 Nc)10 Nd)16 NCorrect answer is option 'B'. Can you explain this answer?.
A wooden block weighs 10 N in air and 6 N in water when fuly immersed.. What is the buoyant force acting on the block?a)4 Nb)6 Nc)10 Nd)16 NCorrect answer is option 'B'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about A wooden block weighs 10 N in air and 6 N in water when fuly immersed.. What is the buoyant force acting on the block?a)4 Nb)6 Nc)10 Nd)16 NCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A wooden block weighs 10 N in air and 6 N in water when fuly immersed.. What is the buoyant force acting on the block?a)4 Nb)6 Nc)10 Nd)16 NCorrect answer is option 'B'. Can you explain this answer?.
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