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Direction : In each of the following questions, a statement of Assertion is given and a corresponding statement of Reason is given just below it. Of the statements, given below, mark the correct answer as:
Assertion : By tying a stone to a wooden plank, an object can be made such that it floats in a river and sinks in the ocean.
Reason : Density of river water is more than the density of sea-water.
  • a)
    Both assertion and reason are true and reason is the correct explanation of assertion.
  • b)
    Both assertion and reason are true but reason is not the correct explanation of assertion.
  • c)
    Assertion is true but reason is false.
  • d)
    Both Assertion and Reason are false.
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
Direction : In each of the following questions, a statement of Assert...
The density of sea-water is greater than the density of river water. Therefore, the buoyant force will be larger in sea-water which keeps the body float.
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Most Upvoted Answer
Direction : In each of the following questions, a statement of Assert...
Assertion : By tying a stone to a wooden plank, an object can be made such that it floats in a river and sinks in the ocean.

Reason : Density of river water is more than the density of sea-water.

The correct answer is option 'D', which states that both the Assertion and Reason are false.

Explanation:

Density is a property of matter that describes how much mass is contained in a given volume. It is calculated by dividing the mass of an object by its volume.

In this case, the assertion states that by tying a stone to a wooden plank, an object can be made to float in a river and sink in the ocean. However, this statement is incorrect.

If an object is floating, it means that its density is less than the density of the liquid it is placed in. If an object is sinking, it means that its density is greater than the density of the liquid it is placed in.

In the reason given, it states that the density of river water is more than the density of sea-water. This statement is also incorrect.

The density of river water can vary depending on various factors such as temperature, salinity, and the presence of dissolved substances. Similarly, the density of sea water can also vary depending on these factors.

The density of river water can be lower or higher than the density of sea water, depending on the specific conditions. Therefore, it is not accurate to say that the density of river water is always more than the density of sea water.

Since both the assertion and reason are false, the correct answer is option 'D'.
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Direction : In each of the following questions, a statement of Assertion is given and a corresponding statement of Reason is given just below it. Of the statements, given below, mark the correct answer as:Assertion : By tying a stone to a wooden plank, an object can be made such that it floats in a river and sinks in the ocean.Reason : Density of river water is more than the density of sea-water.a)Both assertion and reason are true and reason is the correct explanation of assertion.b)Both assertion and reason are true but reason is not the correct explanation of assertion.c)Assertion is true but reason is false.d)Both Assertion and Reason are false.Correct answer is option 'D'. Can you explain this answer?
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Direction : In each of the following questions, a statement of Assertion is given and a corresponding statement of Reason is given just below it. Of the statements, given below, mark the correct answer as:Assertion : By tying a stone to a wooden plank, an object can be made such that it floats in a river and sinks in the ocean.Reason : Density of river water is more than the density of sea-water.a)Both assertion and reason are true and reason is the correct explanation of assertion.b)Both assertion and reason are true but reason is not the correct explanation of assertion.c)Assertion is true but reason is false.d)Both Assertion and Reason are false.Correct answer is option 'D'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Direction : In each of the following questions, a statement of Assertion is given and a corresponding statement of Reason is given just below it. Of the statements, given below, mark the correct answer as:Assertion : By tying a stone to a wooden plank, an object can be made such that it floats in a river and sinks in the ocean.Reason : Density of river water is more than the density of sea-water.a)Both assertion and reason are true and reason is the correct explanation of assertion.b)Both assertion and reason are true but reason is not the correct explanation of assertion.c)Assertion is true but reason is false.d)Both Assertion and Reason are false.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction : In each of the following questions, a statement of Assertion is given and a corresponding statement of Reason is given just below it. Of the statements, given below, mark the correct answer as:Assertion : By tying a stone to a wooden plank, an object can be made such that it floats in a river and sinks in the ocean.Reason : Density of river water is more than the density of sea-water.a)Both assertion and reason are true and reason is the correct explanation of assertion.b)Both assertion and reason are true but reason is not the correct explanation of assertion.c)Assertion is true but reason is false.d)Both Assertion and Reason are false.Correct answer is option 'D'. Can you explain this answer?.
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