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Assertion : The speedometer of a car ...

Assertion : The speedometer of a car measures the instantaneous speed of the car
Reason : Average speed is equal to the total distance covered by an object divided by the total time taken

A

Both A and are true and R is correct explanation of the assertion

B

Both A and R are true but R is not the correct explanation of the assertion

C

A is true, but R is false .

D

A is false, but R is true

Text Solution

AI Generated Solution

The correct Answer is:
To solve the given question, we need to analyze both the assertion and the reason provided. ### Step-by-Step Solution: 1. **Understanding the Assertion**: - The assertion states that "The speedometer of a car measures the instantaneous speed of the car." - **Explanation**: A speedometer is designed to show how fast the car is moving at any given moment. Instantaneous speed refers to the speed of an object at a specific point in time. 2. **Evaluating the Assertion**: - The assertion is **True** because a speedometer indeed measures instantaneous speed. 3. **Understanding the Reason**: - The reason states that "Average speed is equal to the total distance covered by an object divided by the total time taken." - **Explanation**: Average speed is calculated by taking the total distance traveled and dividing it by the total time taken for that journey. This is a standard definition in physics. 4. **Evaluating the Reason**: - The reason is also **True** as it correctly defines average speed. 5. **Analyzing the Relationship**: - While both the assertion and the reason are true, they refer to different concepts: - The assertion talks about instantaneous speed, which is the speed at a specific moment. - The reason discusses average speed, which is the overall speed over a period of time. - Therefore, the reason does not explain the assertion. 6. **Conclusion**: - Since both the assertion and the reason are true, but the reason does not correctly explain the assertion, the correct choice is: - **Both A and R are true, but R is not the correct explanation of A.** ### Final Answer: Both A and R are true, but R is not the correct explanation of A. ---
To solve the given question, we need to analyze both the assertion and the reason provided. ### Step-by-Step Solution: 1. **Understanding the Assertion**: - The assertion states that "The speedometer of a car measures the instantaneous speed of the car." - **Explanation**: A speedometer is designed to show how fast the car is moving at any given moment. Instantaneous speed refers to the speed of an object at a specific point in time. ...
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