NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
Thermal Properties of Matter
146412
The instrument used to measure the temperature of the source from its thermal radiation is:
1 hydrometer
2 barometer
3 thermopile
4 pyrometer
Explanation:
D Pyrometer instrument is used to measure temperature of the source from its thermal radiation. It is based on Stefan's law.
AIIMS-1997
Thermal Properties of Matter
146400
The door of an operating refrigerator is kept open. As a result, the temperature of the room will
1 Remain unchanged
2 Increases
3 Decreases
4 Depends on the contents inside the refrigerator
Explanation:
B The door of refrigerator is open then room temperature will increase because refrigerator will exhaust more heat into the room than earlier. Then, the thermostat will kick in and attempt to cool it down again. This means the engine is running and adding the heat to the room.
AP EAMCET (18.09.2020) Shift-I
Thermal Properties of Matter
146409
The colour of a star indicates its:
1 velocity
2 temperature
3 size
4 length
Explanation:
B The colour of a star indicate its temperature from Wien's displacement law. It states that the wavelength is inversely proportional to the temperature. So, the higher the wavelength emitted, the lower will be its temperature. Red colour have higher wavelength than blue and violet. Then, the blue and violet colour star will have higher temperature than red colour star.
AIIMS-2001
Thermal Properties of Matter
146410
The absolute zero is the temperature at which:
1 all substances exist in solid state
2 molecular motion ceases
3 water freezes
4 none of these
Explanation:
B Absolute zero is the lowest temperature possible. At a temperature of absolute zero there is no motion and no heat. Absolute zero occurs at a temperature of a 0 Kelvin, or -273.15 degrees Celsius, or at -460 degrees Fahrenheit.
146412
The instrument used to measure the temperature of the source from its thermal radiation is:
1 hydrometer
2 barometer
3 thermopile
4 pyrometer
Explanation:
D Pyrometer instrument is used to measure temperature of the source from its thermal radiation. It is based on Stefan's law.
AIIMS-1997
Thermal Properties of Matter
146400
The door of an operating refrigerator is kept open. As a result, the temperature of the room will
1 Remain unchanged
2 Increases
3 Decreases
4 Depends on the contents inside the refrigerator
Explanation:
B The door of refrigerator is open then room temperature will increase because refrigerator will exhaust more heat into the room than earlier. Then, the thermostat will kick in and attempt to cool it down again. This means the engine is running and adding the heat to the room.
AP EAMCET (18.09.2020) Shift-I
Thermal Properties of Matter
146409
The colour of a star indicates its:
1 velocity
2 temperature
3 size
4 length
Explanation:
B The colour of a star indicate its temperature from Wien's displacement law. It states that the wavelength is inversely proportional to the temperature. So, the higher the wavelength emitted, the lower will be its temperature. Red colour have higher wavelength than blue and violet. Then, the blue and violet colour star will have higher temperature than red colour star.
AIIMS-2001
Thermal Properties of Matter
146410
The absolute zero is the temperature at which:
1 all substances exist in solid state
2 molecular motion ceases
3 water freezes
4 none of these
Explanation:
B Absolute zero is the lowest temperature possible. At a temperature of absolute zero there is no motion and no heat. Absolute zero occurs at a temperature of a 0 Kelvin, or -273.15 degrees Celsius, or at -460 degrees Fahrenheit.
146412
The instrument used to measure the temperature of the source from its thermal radiation is:
1 hydrometer
2 barometer
3 thermopile
4 pyrometer
Explanation:
D Pyrometer instrument is used to measure temperature of the source from its thermal radiation. It is based on Stefan's law.
AIIMS-1997
Thermal Properties of Matter
146400
The door of an operating refrigerator is kept open. As a result, the temperature of the room will
1 Remain unchanged
2 Increases
3 Decreases
4 Depends on the contents inside the refrigerator
Explanation:
B The door of refrigerator is open then room temperature will increase because refrigerator will exhaust more heat into the room than earlier. Then, the thermostat will kick in and attempt to cool it down again. This means the engine is running and adding the heat to the room.
AP EAMCET (18.09.2020) Shift-I
Thermal Properties of Matter
146409
The colour of a star indicates its:
1 velocity
2 temperature
3 size
4 length
Explanation:
B The colour of a star indicate its temperature from Wien's displacement law. It states that the wavelength is inversely proportional to the temperature. So, the higher the wavelength emitted, the lower will be its temperature. Red colour have higher wavelength than blue and violet. Then, the blue and violet colour star will have higher temperature than red colour star.
AIIMS-2001
Thermal Properties of Matter
146410
The absolute zero is the temperature at which:
1 all substances exist in solid state
2 molecular motion ceases
3 water freezes
4 none of these
Explanation:
B Absolute zero is the lowest temperature possible. At a temperature of absolute zero there is no motion and no heat. Absolute zero occurs at a temperature of a 0 Kelvin, or -273.15 degrees Celsius, or at -460 degrees Fahrenheit.
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
Thermal Properties of Matter
146412
The instrument used to measure the temperature of the source from its thermal radiation is:
1 hydrometer
2 barometer
3 thermopile
4 pyrometer
Explanation:
D Pyrometer instrument is used to measure temperature of the source from its thermal radiation. It is based on Stefan's law.
AIIMS-1997
Thermal Properties of Matter
146400
The door of an operating refrigerator is kept open. As a result, the temperature of the room will
1 Remain unchanged
2 Increases
3 Decreases
4 Depends on the contents inside the refrigerator
Explanation:
B The door of refrigerator is open then room temperature will increase because refrigerator will exhaust more heat into the room than earlier. Then, the thermostat will kick in and attempt to cool it down again. This means the engine is running and adding the heat to the room.
AP EAMCET (18.09.2020) Shift-I
Thermal Properties of Matter
146409
The colour of a star indicates its:
1 velocity
2 temperature
3 size
4 length
Explanation:
B The colour of a star indicate its temperature from Wien's displacement law. It states that the wavelength is inversely proportional to the temperature. So, the higher the wavelength emitted, the lower will be its temperature. Red colour have higher wavelength than blue and violet. Then, the blue and violet colour star will have higher temperature than red colour star.
AIIMS-2001
Thermal Properties of Matter
146410
The absolute zero is the temperature at which:
1 all substances exist in solid state
2 molecular motion ceases
3 water freezes
4 none of these
Explanation:
B Absolute zero is the lowest temperature possible. At a temperature of absolute zero there is no motion and no heat. Absolute zero occurs at a temperature of a 0 Kelvin, or -273.15 degrees Celsius, or at -460 degrees Fahrenheit.