Physics - Heat & Thermo Question with Solution | TestHub

PhysicsHeat & ThermoMiscellaneousMedium2 minPYQ_2019

PhysicsMediumsingle choice

A thermometer graduated according to a linear scale reads a value $x_{0}$ when in contact with boiling water, and $x_{0} /3$ when in contact with ice. What is the temperature of an object in $^{\circ} C$ , if this thermometer in the contact with the object reads $x_{0} /2 ?$

Options:

Answer:

Solution:

Let required temperature $= T^{\circ} C$
$\Rightarrow T^{\circ} C = \frac{x _{0}}{2} - \frac{x _{0}}{3} = \frac{x _{0}}{6}$ $& (x_{0} - \frac{x _{0}}{3}) = (100 - 0^{\circ} C)$ $\Rightarrow \frac{2 x _{0}}{3} = 100 \Rightarrow x_{0} = \frac{300}{2}$ $\Rightarrow T^{\circ} C = \frac{x _{0}}{6} = \frac{150}{6} = 2 5^{\circ} C$

Stream:JEESubject:PhysicsTopic:Heat & ThermoSubtopic:Miscellaneous

⏱ 2mℹ️ Source: PYQ_2019

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