Water has maximum density at

  • A
    $0^{\circ}C$
  • B
    $32^{\circ}F$
  • C
    $-4^{\circ}C$
  • D
    $4^{\circ}C$

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The temperature of a body on the Kelvin scale is found to be $X \; K$. When it is measured by a Fahrenheit thermometer,it is found to be $X \; ^\circ F$. Then $X$ is:

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Two absolute scales $A$ and $B$ have triple points of water defined to be $200\; A$ and $350\; B$. What is the relation between $T_{A}$ and $T_{B}$?

Assertion $(A)$: Rapidly changing temperatures can be measured by thermocouples.
Reason $(R)$: The thermal capacity of the junction of a thermocouple is very small.

Which of the following figures represents the relation between Celsius $(C)$ and Fahrenheit $(F)$ temperatures?

The gas thermometers are more sensitive than liquid thermometers because

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