Class 11Physics10-1.Thermometry, Thermal Expansion and CalorimetryTemperature and Temperature scales
Easy$A$ centigrade and Fahrenheit thermometer are dipped in boiling water. The water temperature is lowered until the Fahrenheit temperature observed is $140^{\circ} F$. At that time the temperature registered by the centigrade thermometer is (in $^{\circ} C$)
- A$80$
- B$60$
- C$40$
- D$20$
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