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Mass of a particular amount of substance
1. is the amount of matter present in it.
2. does not vary from place to place.
3. changes with change in gravitational force.
Q. Select the correct answer using the code given below:
  • a)
    1,2 and 3
  • b)
    1 and 2 only
  • c)
    2 and 3 only
  • d)
    1 only
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
Mass of a particular amount of substance1. is the amount of matter pre...
Mass of a particular amount of substance depends on the amount of matter present in it and it does not vary from place to place.
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Most Upvoted Answer
Mass of a particular amount of substance1. is the amount of matter pre...
Explanation:
The mass of a substance refers to the amount of matter present in it. It is a fundamental property of matter and is often measured in units such as grams or kilograms. The mass of a substance does not depend on its location or the gravitational force acting on it. Therefore, statements 1 and 2 are correct.

Statement 1: The amount of matter present in a substance determines its mass. This means that if we have more matter, the mass will be greater, and if we have less matter, the mass will be lesser. For example, a block of iron will have a greater mass than a block of wood of the same size.

Statement 2: The mass of a substance is an intrinsic property and does not vary from place to place. This means that regardless of where the substance is located, its mass will remain the same. For instance, a kilogram of iron will have the same mass on Earth as it would on the Moon.

However, the mass of a substance can be influenced by the gravitational force acting on it. This is because weight, which is the force exerted on an object due to gravity, is directly proportional to mass. The equation that relates weight (W), mass (m), and gravitational acceleration (g) is W = mg. Therefore, if the gravitational force changes, the weight of the substance will change, but its mass will remain the same. Hence, statement 3 is incorrect.

In Summary:
- Mass is the amount of matter present in a substance.
- Mass does not vary from place to place.
- Mass is not affected by changes in gravitational force.
- Therefore, the correct answer is option B, which includes statements 1 and 2 only.
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Mass of a particular amount of substance1. is the amount of matter present in it.2. does not vary from place to place.3. changes with change in gravitational force.Q. Select the correct answer using the code given below:a)1,2 and 3b)1 and 2 onlyc)2 and 3 onlyd)1 onlyCorrect answer is option 'B'. Can you explain this answer?
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