Two thermometers are dipped in the same glass of water — one in Celsius (°C), one in Fahrenheit (°F)
Two thermometers are dipped in the same glass of water — one in Celsius (°C), one in Fahrenheit (°F). The first reads 30°C, the second 86°F. Ravi says since they show different numbers, one must be broken. Is Ravi right?
Who do you think is right? Pick one.
The answer: No, both are right, just different scales
Why
Ravi is doing what feels like sound checking — same water, different numbers, so something looks off. But 30 and 86 disagreeing as NUMBERS doesn't mean they disagree about the water's actual warmth, because they're counting in two different-sized units, like rupees and paise for the same amount of money. Celsius marks water's freezing point as 0 and boiling as 100; Fahrenheit marks the same two points as 32 and 212 — different zero, different-sized steps, same real temperature underneath. Convert 30°C using the rule (°F = °C × 9/5 + 32) and you get exactly 86°F — they're not competing, they're the same fact in two different counting systems. Test: 0°C and 32°F both describe ice water; 100°C and 212°F both describe boiling water — always paired, never disagreeing. Both are right, just different scales: two honest thermometers reporting the identical temperature in two different units.
On Socho, you explain your thinking out loud and a coach asks about YOUR reasoning — one question a day, free, in Hindi, Hinglish or English.
Try a question on Socho →More disagreements in Temperature and its Measurement