Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : A body that is a good radiator is also a good absorber of radiation at a given wavelength. Reason : According to Kirchhoff's law the absorptivity of a body is equal to its emissivity at a given wavelength.

If both assertion and reason are true and the reason is the correct explanation of the assertion.

If both assertion and reason are true but reason is not the correct explanation of the assertion.

If assertion is true but reason is false.

If the assertion and reason both are false.

Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : Temperatures near the sea coast are moderate. Reason : Water has a high thermal conductivity.

If both assertion and reason are true and the reason is the correct explanation of the assertion.

If both assertion and reason are true but reason is not the correct explanation of the assertion.

If assertion is true but reason is false.

If the assertion and reason both are false.

Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : Bodies radiate heat at all temperatures. Reason : Rate of radiation of heat is proportional to the fourth power of absolute temperature.

If both assertion and reason are true and the reason is the correct explanation of the assertion.

If both assertion and reason are true but reason is not the correct explanation of the assertion.

If assertion is true but reason is false.

If assertion is false but reason is true.

Assertion :The equivalent thermal conductivity of two plates of same thickness in contact is less than the smaller value of thermal conductivity Reason : For two plates of equal thickness in contact the equivalent thermal conductivity is given by: 1/K=1/K 1 +1/K 2

Assertion is correct but Reason is incorrect

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

Both Assertion and Reason are incorrect

Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : If the temperature of a star is doubled then the rate of loss of heat from it becomes 16 times. Reason : Specific heat varies with temperature.

If both assertion and reason are true and the reason is the correct explanation of the assertion.

If both assertion and reason are true but reason is not the correct explanation of the assertion.

If assertion is true but reason is false.

If the assertion and reason both are false.

Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : Blue star is at high temperature than red star. Reason : Wein's displacement law states that T&prop;(1/λ m ).

If both assertion and reason are true and the reason is the correct explanation of the assertion.

If both assertion and reason are true but reason is not the correct explanation of the assertion.

If assertion is true but reason is false.

If the assertion and reason both are false.

Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : A brass tumbler feels much colder than a wooden tray on a chilly day. Reason : The thermal conductivity of brass is less than that of wood.

If both assertion and reason are true and the reason is the correct explanation of the assertion.

If both assertion and reason are true but reason is not the correct explanation of the assertion.

If assertion is true but reason is false.

If the assertion and reason both are false.

Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : For higher temperature, the peak emission wavelength of a black body shifts to lower wavelengths. Reason : Peak emission wavelength of a blackbody is proportional to the fourth power of temperature.

If both assertion and reason are true and the reason is the correct explanation of the assertion.

If both assertion and reason are true but reason is not the correct explanation of the assertion.

If assertion is true but reason is false.

If the assertion and reason both are false.

Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : It is hotter over the top of a fire than at the same distance on the sides. Reason : Air surrounding the fire conducts more heat upwards.

If both assertion and reason are true and the reason is the correct explanation of the assertion.

If both assertion and reason are true but reason is not the correct explanation of the assertion.

If assertion is true but reason is false.

If the assertion and reason both are false.

Read the assertion and reason carefully to mark the correct option out of the options given below: Assertion : Woolen clothes keep the body warm in winter. Reason : Air is a bad conductor of heat.

If both assertion and reason are true and the reason is the correct explanation of the assertion.

If both assertion and reason are true but reason is not the correct explanation of the assertion.

If assertion is true but reason is false.

If the assertion and reason both are false.

Assertion and Reason Test: Thermal Properties of Matter Free MCQ Practice Test with Solutions

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Assertion & Reason Test: Thermal Properties of Matter MCQs with Answers

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