JEE MAIN - Physics (2019 - 11th January Evening Slot - No. 17)
A thermometer graduated according to a linear scale reads a value x0 when in contact with boiling water, and x0/3 when in contact with ice. What is the temperature of an object in oC, if this thermometer in the contact with the object reads x0/2 ?
60
35
25
40
Explanation
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$$ \Rightarrow $$ ToC = $${{{x_0}} \over 6}$$ & $$\left( {{x_0} - {{{x_0}} \over 3}} \right)$$ = (100 $$-$$ 0oC)
x0 = $${{300} \over 2}$$
$$ \Rightarrow $$ ToC = $${{150} \over 6}$$ = 25oC
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