The range of a clinical thermometer is

People boil water as safe measure to drink because:

At low temperatures ________  type of thermometer is used.

The most commonly used thermometric substance is

State whether given statement is True or False
The upper standard point of a thermometer is 273 K

A barometer with a brass scale correct at $0^oC$ reads $70\ cm$ of mercury on a day when the air temperature is $40^oC$. the correct reading at $0^oC$ is (Coefficient of real expansion of mercury, is $0.00018/^oC$ and the coefficient of linear expansion of brass is $0.000018/^oC$.

A Fahrenheit thermometer registers $107^{o}F$ while a faulty Celsius thermometer registers $42^{o}C$. Find the error in the later

The pressure of a gass filled in the bulb of a constant volume gas thermometer at temperatures $0^{o}C$ and $100^{o}C$ are $27.50\ cm$ and $37.50\ cm$ of $Hg$ respectively. At an unknown temperature the pressure is $32.45\ cm$ of $Hg$. Unknown temperature is

The height of the mercures column in a barometer provided with a bross scale corrected at $ 0^0C $ is obserevd to be 74.9 cm at $ 15^0 C $ . find the true height of the coulmn at $ 0^0 C/ \alpha _b=20 \times 10^{-6} /c^0 \gamma _Hg=175 \times 10^{-6}/c^0 . $

Mercury thermometers can be used to measure temperatures upto:

We cannot use mercury thermometer at low temperatures because:

Mercury is commonly used as a thermometric fluid rather than water because

Compared to other liquids, why is mercury preferred as a barometric fluid?

A thermometer is gradated in millimeters . It registers -3 mm when the bulb of themometer is a pure melting ice  and 22 mm when the thermometer is in stem at a pressure of 1 atmosphere. The temperature in $^{ \circ  }C$  when the thermometer registers 13 mm is 

A________is used to measure temperature

Water is better thermometric liquid

State whether given statement is True or False
Thermometer measures the heat energy in a body

Name the device for detecting and measuring small amount of thermal energy.

State whether true or false :
A gas thermometer measures temperature with the variation in pressure or volume of a gas.

The resistance of a platinum wire of a platinum resistance thermometer at the ice point is $5 \Omega$ and at steam point is $5.4 \Omega$. When the thermometer is inserted in a hot bath, the resistance of the platinum wire is $6.2 \Omega$. Find the temperature of the hot bath.

A thermometer uses 

45 gm of alcohol are needed to completely fill up a weight thermometer at $15^{\circ}C$. Find the weight of alcohol which will overflow when the weight thermometer is heated to $33^{circ}C$.
(Given ${ \gamma  } _{ a }=121\times { 10 }^{ -5 }{ { \circ  } _{ C } }^{ -1 }$

Consider two thermometers $T _1$ and $T _2$ of equal length which can be used to measure temperature over the range $\theta _1$ and $\theta _2$. $T _1$ contains mercury as thermometric liquid while $T _2$ contains bromine. The volumes of the two liquids are the same at the temperature $\theta _1$. The volumetric coefficients of expansion of mercury and bromine are $18\times 10^{-5}K^{-1}$ and $108\times 10^{-5}K^{-1}$, respectively. The increase in length of each liquid is the same for the same increase in temperature. If the diameters of the capillary tubes if the two thermometers are $d _1$ and $d _2$ respectively, then the ratio $d _1:d _2$ would be closest to.

$\begin{array} { l } { \text { Energy required to dissociate } 4 \mathrm { g } \text { of gaseous } } \ { \text { hydrogen into free gaseous atoms is } 208 \mathrm { Kcal {at}  }  } \ {  25 ^ { \circ } \mathrm { C } \text { . The bond energy of } \mathrm { H } - \mathrm { H } \text { bond will be : } } \end{array}$ .

Which of the following statements is correct?

150 g of ice is mixed with 100 g of water at temperature $80^oC$. The latent heat of ice is 80 ca/g and the specific heat of water is $1 cal/g-^oC$. Assuming no heat loss to the environment, the amount of ice which does not melt is

The following three objects (1) a metal tray, (2) a block of wood,and (3) a wooden cap are left in a closed room overnight. Next day the temperature of each is recorded as $T _1, T _2$ and $T _3$ respectively. The likely situation is 

A new temperature scale uses X as a unit of temperature, where the numerical value of the temperature t$ _x$ in this scale is related to the absolute temperature T by t$ _x$ = 3T + 300. If the specific heat of a material using this unit is 1400 J kg$^{-1}$ X${^-1}$ its specificne in the S.I. system of units is

Two glass tumblers have been stuck together (one into the other). They can be seperated by

Iron glows in red colour when it is heated to very high temperature. The reason for this is :

A container having some gas was kept in a moving train. The temperature of the gas in the container will be

Heat causes-

A wooden spoon is dipped in a cup of ice cream. It's another end

Heat of conduction flows in the direction of decreasing: 

An iron ball at $40^oC$ is dropped in a mug containing water at $40^o$C.

The heat will

Heat flow can occur due to which of the following situation

1 Mg of ice at $0^0$C is mixed with 10 Mg of water at $10^0$C. The final temperature is  

 The value of absolute zero temperature in Fahrenheit scale is 

A piece of lead falls from height of $100m$ on a fixed non-conducting slab which brings it to rest. if the specific heat of lead is $30.6 cal/kg ^ \circ C $ the increase in temperature of the slab immediately after collision is  

A physicist says "a body contains $10\ joule$ heat" but a physics learner says "this statement is correct only when the body is in liquid state". Mark correct option or options :

Two identical rods of a mental are welded in series then 20 cal of heat flows through them in  4 minute. If the rods are welded in parallel then same amount of heat will flow in 

A liter of air at $20^oC$ is heated until both the pressure and the volume are tripled, what is the tempertare then.