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Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.
Assertion : Infrared radiation plays an important role in maintaining the average temperature of earth.
Reason : Infrared radiations are sometimes referred to as heat waves
- a)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
- b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
- c)If the Assertion is correct but Reason is incorrect.
- d)If both the Assertion and Reason are incorrect.
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
Directions: These questions consist of two statements, each printed a...
Infrared radiation helps to maintain the earth's warmth through the greenhouse effect. Incoming visible light which passes relatively easily through the atmosphere is absorbed by the earth’s surface and re-radiated as infrared radiation. The radiation is trapped by greenhouse gases such as carbon dioxide and water vapour and they heat up and heat their surroundings.
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Directions: These questions consist of two statements, each printed a...
Assertion: Infrared radiation plays an important role in maintaining the average temperature of the earth.
Reason: Infrared radiations are sometimes referred to as heat waves.
The correct answer is option 'B', which states that both the Assertion and Reason are correct, but the Reason is not a correct explanation of the Assertion. Let's analyze this further:
Assertion
Infrared radiation plays an important role in maintaining the average temperature of the earth.
Reason
Infrared radiations are sometimes referred to as heat waves.
Explanation
Understanding Infrared Radiation
Infrared radiation is a type of electromagnetic radiation that has longer wavelengths than visible light. It is not visible to the human eye but can be felt as heat. Infrared radiation is emitted by all objects that have a temperature above absolute zero. It is an essential component of the Earth's energy balance.
Role of Infrared Radiation in Earth's Temperature
The Assertion in the question is correct. Infrared radiation plays a crucial role in maintaining the average temperature of the Earth. Here's how it happens:
1. Solar Radiation: The Earth receives energy from the Sun in the form of visible light and a small portion of ultraviolet (UV) radiation. This energy warms up the Earth's surface.
2. Absorption and Emission: When the Earth's surface absorbs solar radiation, it heats up and emits energy back into the atmosphere. This energy is primarily in the form of infrared radiation.
3. Greenhouse Effect: Greenhouse gases present in the Earth's atmosphere, such as carbon dioxide (CO2) and water vapor, are transparent to incoming solar radiation but absorb a significant portion of outgoing infrared radiation. This absorption traps heat in the atmosphere, leading to the greenhouse effect.
4. Temperature Regulation: The greenhouse effect helps regulate the Earth's temperature. Without it, the Earth would be too cold to support life. Infrared radiation plays a crucial role in maintaining the balance between incoming solar radiation and outgoing heat energy, which helps maintain the average temperature of the Earth.
Reasoning: Infrared Radiations as Heat Waves
The Reason in the question states that infrared radiations are sometimes referred to as heat waves. While it is true that infrared radiation can be felt as heat, it is not the only form of electromagnetic radiation that can be perceived as heat. Heat can also be transferred through conduction and convection. Therefore, the Reason is not a correct explanation of the Assertion.
Conclusion
In summary, infrared radiation indeed plays an important role in maintaining the average temperature of the Earth. However, it is not accurate to say that infrared radiations are solely referred to as heat waves, as heat can also be transferred through other means. Hence, the correct answer is option 'B'.
Reason: Infrared radiations are sometimes referred to as heat waves.
The correct answer is option 'B', which states that both the Assertion and Reason are correct, but the Reason is not a correct explanation of the Assertion. Let's analyze this further:
Assertion
Infrared radiation plays an important role in maintaining the average temperature of the earth.
Reason
Infrared radiations are sometimes referred to as heat waves.
Explanation
Understanding Infrared Radiation
Infrared radiation is a type of electromagnetic radiation that has longer wavelengths than visible light. It is not visible to the human eye but can be felt as heat. Infrared radiation is emitted by all objects that have a temperature above absolute zero. It is an essential component of the Earth's energy balance.
Role of Infrared Radiation in Earth's Temperature
The Assertion in the question is correct. Infrared radiation plays a crucial role in maintaining the average temperature of the Earth. Here's how it happens:
1. Solar Radiation: The Earth receives energy from the Sun in the form of visible light and a small portion of ultraviolet (UV) radiation. This energy warms up the Earth's surface.
2. Absorption and Emission: When the Earth's surface absorbs solar radiation, it heats up and emits energy back into the atmosphere. This energy is primarily in the form of infrared radiation.
3. Greenhouse Effect: Greenhouse gases present in the Earth's atmosphere, such as carbon dioxide (CO2) and water vapor, are transparent to incoming solar radiation but absorb a significant portion of outgoing infrared radiation. This absorption traps heat in the atmosphere, leading to the greenhouse effect.
4. Temperature Regulation: The greenhouse effect helps regulate the Earth's temperature. Without it, the Earth would be too cold to support life. Infrared radiation plays a crucial role in maintaining the balance between incoming solar radiation and outgoing heat energy, which helps maintain the average temperature of the Earth.
Reasoning: Infrared Radiations as Heat Waves
The Reason in the question states that infrared radiations are sometimes referred to as heat waves. While it is true that infrared radiation can be felt as heat, it is not the only form of electromagnetic radiation that can be perceived as heat. Heat can also be transferred through conduction and convection. Therefore, the Reason is not a correct explanation of the Assertion.
Conclusion
In summary, infrared radiation indeed plays an important role in maintaining the average temperature of the Earth. However, it is not accurate to say that infrared radiations are solely referred to as heat waves, as heat can also be transferred through other means. Hence, the correct answer is option 'B'.
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Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Infrared radiation plays an important role in maintaining the average temperature of earth.Reason : Infrared radiations are sometimes referred to as heat wavesa)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer?
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Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Infrared radiation plays an important role in maintaining the average temperature of earth.Reason : Infrared radiations are sometimes referred to as heat wavesa)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Infrared radiation plays an important role in maintaining the average temperature of earth.Reason : Infrared radiations are sometimes referred to as heat wavesa)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Infrared radiation plays an important role in maintaining the average temperature of earth.Reason : Infrared radiations are sometimes referred to as heat wavesa)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer?.
Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Infrared radiation plays an important role in maintaining the average temperature of earth.Reason : Infrared radiations are sometimes referred to as heat wavesa)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Infrared radiation plays an important role in maintaining the average temperature of earth.Reason : Infrared radiations are sometimes referred to as heat wavesa)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Infrared radiation plays an important role in maintaining the average temperature of earth.Reason : Infrared radiations are sometimes referred to as heat wavesa)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer?.
Solutions for Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Infrared radiation plays an important role in maintaining the average temperature of earth.Reason : Infrared radiations are sometimes referred to as heat wavesa)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12.
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ample number of questions to practice Directions: These questions consist of two statements, each printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses.Assertion : Infrared radiation plays an important role in maintaining the average temperature of earth.Reason : Infrared radiations are sometimes referred to as heat wavesa)If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.b)If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.c)If the Assertion is correct but Reason is incorrect.d)If both the Assertion and Reason are incorrect.Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 12 tests.
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