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Consider the following statements and select the correct code.
Assertion (A): A piece of copper and a piece of glass are heated to the same temperature. When touched, thereafter, the copper piece appears hotter than the glass piece.
Reason (R): The density of copper is more than that of glass.
Assertion (A): A piece of copper and a piece of glass are heated to the same temperature. When touched, thereafter, the copper piece appears hotter than the glass piece.
Reason (R): The density of copper is more than that of glass.
- a)Both A and R are true and R is the correct explanation of A.
- b)Both A and R are true, but R is not the correct explanation of A.
- c)A is true, but R is false.
- d)A is false, but R is true.
Correct answer is option 'B'. Can you explain this answer?
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Consider the following statements and select the correct code.Assertio...
Because thermal conductivity of copper is greater than glass.
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Consider the following statements and select the correct code.Assertio...
Assertion (A): A piece of copper and a piece of glass are heated to the same temperature. When touched, thereafter, the copper piece appears hotter than the glass piece.
Reason (R): The density of copper is more than that of glass.
The correct answer is option B: Both A and R are true, but R is not the correct explanation of A.
Explanation:
Difference in Heat Transfer:
When two objects at the same temperature are touched, heat flows from the hotter object to the cooler object. The rate of heat transfer depends on various factors including the thermal conductivity of the materials.
Thermal Conductivity:
The thermal conductivity of a material determines how well it conducts heat. Copper has a higher thermal conductivity compared to glass. This means that copper can transfer heat more efficiently than glass.
Rate of Heat Transfer:
When the copper and glass pieces are heated to the same temperature and then touched, the copper piece will transfer heat to our skin more effectively due to its higher thermal conductivity. As a result, it will feel hotter to the touch compared to the glass piece.
Density:
Density, on the other hand, is a measure of how much mass is packed into a given volume. It is not directly related to the sensation of heat. The density of copper is indeed higher than that of glass, but this difference in density does not directly contribute to the perceived temperature difference when the objects are touched.
Explanation of the Answer:
Both the assertion and the reason are true. When two objects at the same temperature are touched, the object with higher thermal conductivity (in this case, copper) will transfer heat more effectively and feel hotter to the touch. However, the reason provided (density) does not directly explain why the copper piece feels hotter. Density is not a factor in the sensation of temperature. Therefore, option B is the correct answer as it states that both the assertion and the reason are true, but the reason is not the correct explanation of the assertion.
Reason (R): The density of copper is more than that of glass.
The correct answer is option B: Both A and R are true, but R is not the correct explanation of A.
Explanation:
Difference in Heat Transfer:
When two objects at the same temperature are touched, heat flows from the hotter object to the cooler object. The rate of heat transfer depends on various factors including the thermal conductivity of the materials.
Thermal Conductivity:
The thermal conductivity of a material determines how well it conducts heat. Copper has a higher thermal conductivity compared to glass. This means that copper can transfer heat more efficiently than glass.
Rate of Heat Transfer:
When the copper and glass pieces are heated to the same temperature and then touched, the copper piece will transfer heat to our skin more effectively due to its higher thermal conductivity. As a result, it will feel hotter to the touch compared to the glass piece.
Density:
Density, on the other hand, is a measure of how much mass is packed into a given volume. It is not directly related to the sensation of heat. The density of copper is indeed higher than that of glass, but this difference in density does not directly contribute to the perceived temperature difference when the objects are touched.
Explanation of the Answer:
Both the assertion and the reason are true. When two objects at the same temperature are touched, the object with higher thermal conductivity (in this case, copper) will transfer heat more effectively and feel hotter to the touch. However, the reason provided (density) does not directly explain why the copper piece feels hotter. Density is not a factor in the sensation of temperature. Therefore, option B is the correct answer as it states that both the assertion and the reason are true, but the reason is not the correct explanation of the assertion.
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Consider the following statements and select the correct code.Assertion (A): A piece of copper and a piece of glass are heated to the same temperature. When touched, thereafter, the copper piece appears hotter than the glass piece.Reason (R): The density of copper is more than that of glass.a)Both A and R are true and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true, but R is false.d)A is false, but R is true.Correct answer is option 'B'. Can you explain this answer?
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Consider the following statements and select the correct code.Assertion (A): A piece of copper and a piece of glass are heated to the same temperature. When touched, thereafter, the copper piece appears hotter than the glass piece.Reason (R): The density of copper is more than that of glass.a)Both A and R are true and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true, but R is false.d)A is false, but R is true.Correct answer is option 'B'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements and select the correct code.Assertion (A): A piece of copper and a piece of glass are heated to the same temperature. When touched, thereafter, the copper piece appears hotter than the glass piece.Reason (R): The density of copper is more than that of glass.a)Both A and R are true and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true, but R is false.d)A is false, but R is true.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements and select the correct code.Assertion (A): A piece of copper and a piece of glass are heated to the same temperature. When touched, thereafter, the copper piece appears hotter than the glass piece.Reason (R): The density of copper is more than that of glass.a)Both A and R are true and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true, but R is false.d)A is false, but R is true.Correct answer is option 'B'. Can you explain this answer?.
Consider the following statements and select the correct code.Assertion (A): A piece of copper and a piece of glass are heated to the same temperature. When touched, thereafter, the copper piece appears hotter than the glass piece.Reason (R): The density of copper is more than that of glass.a)Both A and R are true and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true, but R is false.d)A is false, but R is true.Correct answer is option 'B'. Can you explain this answer? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Consider the following statements and select the correct code.Assertion (A): A piece of copper and a piece of glass are heated to the same temperature. When touched, thereafter, the copper piece appears hotter than the glass piece.Reason (R): The density of copper is more than that of glass.a)Both A and R are true and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true, but R is false.d)A is false, but R is true.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements and select the correct code.Assertion (A): A piece of copper and a piece of glass are heated to the same temperature. When touched, thereafter, the copper piece appears hotter than the glass piece.Reason (R): The density of copper is more than that of glass.a)Both A and R are true and R is the correct explanation of A.b)Both A and R are true, but R is not the correct explanation of A.c)A is true, but R is false.d)A is false, but R is true.Correct answer is option 'B'. Can you explain this answer?.
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