Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : In desert area, days get hot fastly and the nights get cold fastly.
Reason (R) : The specific heat capacity for air and land is less than that of water.
In the light of the above statements, choose the correct answer from the options given below
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R
Assertion (A) : In desert area, days get hot fastly and the nights get cold fastly.
Reason (R) : The specific heat capacity for air and land is less than that of water.
In the light of the above statements, choose the correct answer from the options given below
- If both assertion and reason are true and reason is the correct explanation of assertion.
- If both assertion and reason are true but reason is not the correct explanation of assertion.
- If assertion is true but reason is false.
- If both assertion and reason are false.
The Correct Option is A
Solution and Explanation
Answer (a) If both assertion and reason are true and reason is the correct explanation of assertion.
Assertion : In desert area, days get hot fastly and the nights get cold fastly. (Correct)
Reason : The specific heat capacity for air and land is less than that of water. (True and correct explanation)
Top Questions on specific heat capacity
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- The circuit shown in the figure contains an inductor L, a capacitor , a resistor and an ideal battery. The circuit also contains two keys and . Initially, both the keys are open and there is no charge on the capacitor. At an instant, key is closed and immediately after this the current in is found to be . After a long time, the current attains a steady state value . Thereafter, is closed and simultaneously is opened and the voltage across oscillates with amplitude and angular frequency .
Match the quantities mentioned in List-I with their values in List-II and choose the correct option.List-I List-II P The value of in Ampere is I Q The value of I2 in Ampere is II R The value of in kilo-radians/s is III S The value of in Volt is IV 200 - JEE Advanced - 2024
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Questions Asked in AIIMS exam
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Reason (R) : Liberation of oxygen is due to photolysis of water.
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Assertion (A) : The Cro-Magnon man was the direct ancestor of the living modern man.
Reason (R) : Cro-Magnon man had slightly prognathous face.
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Assertion: Orbit of a satellite is within the gravitational field of earth whereas escaping is beyond the gravitational field of earth.
Reason: Orbital velocity of a satellite is greater than its escape velocity.
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Concepts Used:
Specific Heat Capacity
Specific heat of a solid or liquid is the amount of heat that raises the temperature of a unit mass of the solid through 1°C.
Molar Specific Heat:
The Molar specific heat of a solid or liquid of a material is the heat that you provide to raise the temperature of one mole of solid or liquid through 1K or 1°C.
Specific Heat at Constant Pressure or Volume:
The volume of solid remains constant when heated through a small range of temperature. This is known as specific heat at a constant volume. It is denoted as CV.
The pressure of solid remains constant when heated through a small range of temperature. This is known as specific heat at constant pressure which can be denoted as CP.