Tag: measuring temperature

Questions Related to measuring temperature

The quantity of heat energy required to change the temperature of one gram of water by one degree Celsius is known as

  1. 1 joule

  2. 1 kilocalorie

  3. 1 calorie

  4. 1 ampere


Correct Option: C
Explanation:

The amount of heat required to raise the temperature of one gram of water  through $ 1 ^{o}$ (from $14.5^{o}C$ to $15.5^{o}C$), is called one calorie.

One calorie is defined as

  1. The amount of heat energy required to raise the temperature of $1\ g$ water by $1^o\ C$

  2. The amount of heat energy required to raise the temperature of $1\ kg$ water by $1^o\ C$ 

  3. The amount of heat energy required to raise the temperature of $1\ g$ water by $1^o\ F$ 

  4. The amount of power required to raise the temperature of $1\ g$ water by $1^o\ C$ 


Correct Option: A
Explanation:

The amount of heat energy required to raise the temperature of 1 g water by $1^o\ C$ is called one calorie.

1 volt is equivalent to:

  1. $\dfrac { newton }{ second }$

  2. $\dfrac { newton }{ coulomb }$

  3. $\dfrac { joule }{ coulomb }$

  4. $\dfrac { joule }{ second }$


Correct Option: C
Explanation:
Energy, $E=QV$
        $V=\dfrac{E}{R}$
$ \ 1 Volt=1 \ \dfrac{Joule}{Coulomb}$

Hence, option C is correct.

The temperature range in the definition of calorie is

  1. $14.5^{o}C $ to $15.5^{o}C $

  2. $15.5^{o}C $ to $16.5^{o}C $

  3. $1^{o}C $ to $2^{o}C $

  4. $13.5^{o}C $ to $14.5^{o}C $


Correct Option: A
Explanation:

According to the International Committee of Pure Physics, calorie is the standard unit to measure heat. The quantity of heat required to raise 1 gram of water from $14.5^o C \ to \ 15.5^o C$ is defined as a calorie.

1 Joule $=$

  1. $10^8 ergs$

  2. $10^6 ergs$

  3. $10^7 ergs$

  4. $10^{10} ergs$


Correct Option: C
Explanation:

We know,

$1 \ Joule = 10000000 \ ergs = 10^7 \ ergs$
Hence, option C is correct.

Out of the metal balls of same diameter one is solid and other is hollow. Both are heated to the same temperature at $300^{0}C$ and then allowed to cool in the same surroundings then rate of loss of heat will be:

  1. More for hollow sphere

  2. More for solid sphere

  3. Same for both

  4. None of the above


Correct Option: A

The amount of heat required to raise the temperature of 1 kilogram of water by $1:^oC$ is called :

  1. Kilo-calorie

  2. calorie

  3. B. T. U

  4. $calorie/^oC$


Correct Option: A
Explanation:

The amount of heat required to raise the temperature of 1 kilo gram of water by $1:^oC$ is called kilo calorie.

The temperature of a normal human being is

  1. $31^{o} C$

  2. $37^{o} C$

  3. $20^{o} C$

  4. $50^{o} C$


Correct Option: B
Explanation:

$98.4^{o} F$ is temperature of normal human being. Which is also equal to $37^{o} C$.

Name the device which is used to measure temperature.

  1. Caloriemeter

  2. Thermometer

  3. Vermier calliper

  4. None


Correct Option: B
Explanation:

Thermometer is used to measure temperature. The degree of hotness or coldness of a body is temperature.

$10$grams of hydrogen gas and $40$ grams of helium gas are mixed in a closed vessel. Heat that has to be supplied to the gas raise its temperature by $50^oC$ is

  1. $2750$J

  2. $2750$cal

  3. $2000$cal

  4. $2000$J


Correct Option: A