JEE Mains · Physics · STD 11 - 10.1, thermonetry,thermal expansion and calorimetry
On celcius scale the temperature of body increases by \(40^{\circ} \mathrm{C}\). The increase in temperature on Fahrenheit scale is _______.
- A \(70^{\circ} \mathrm{F}\)
- B \(68^{\circ} \mathrm{F}\)
- C \(72^{\circ} \mathrm{F}\)
- D \(75^{\circ} \mathrm{F}\)
Answer & Solution
Correct Answer
(C) \(72^{\circ} \mathrm{F}\)
Step-by-step Solution
Detailed explanation
We know that per \({ }^{\circ} \mathrm{C}\) change is equivalent to \(1.8^{\circ}\) change in \({ }^{\circ} \mathrm{F}\). \(\therefore 40^{\circ}\) change on celcius scale will corresponds to \(72^{\circ}\) change on Fahrenheit scale. Hence option \((3)\)
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