A Faulty Thermometer has its Lower and Upper Fixed Point 40°C and 95°C. If it reads 30°C what is its actual temperature?
In this article, we will understand how A Faulty Thermometer shows wrong temperature values when the lower and upper fixed points are incorrect.
Understanding A Faulty Thermometer in Physics
When the lower fixed point is 40°C instead of 0°C and the upper point is 95°C instead of 100°C, the scale becomes compressed. Therefore, the reading shown is not the true temperature.
How to calculate actual temperature?
Actual Temperature (T) =
(100 – 0)/(95 – 40) × (Reading – 40)
= (100/55) × (30 – 40)
= (100/55) × (-10)
= -100/55 ≈ -1.8°C
So, the actual temperature is approximately -2°C.
Note: Always compare with correct fixed points (0°C and 100°C) when solving thermometer questions in physics.
External Reference (DoFollow):
Thermometer – Wikipedia
Internal link (replace URL): Related Physics Chapter
Key Points of A Faulty Thermometer Problem
- Wrong lower fixed point
- Wrong upper fixed point
- Incorrect temperature scale
- Conversion required to get true temperature
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faulty-thermometer, thermometer-error, physics-note, class11-physics, temperature-scale, heat-and-temp, nepali-students, science-education, ctevt, physics-solution, class11-note, study-material, exam-preparation, thermometerscale, physics-trick,A Faulty Thermometer has its Lower and Upper Fixed Point 40°C and 95°C. If it reads 30°C what is its actual temperature?
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faulty-thermometer, thermometer-error, physics-note, class11-physics, temperature-scale, heat-and-temp, nepali-students, science-education, ctevt, physics-solution, class11-note, study-material, exam-preparation, thermometerscale, physics-trick,A Faulty Thermometer has its Lower and Upper Fixed Point 40°C and 95°C. If it reads 30°C what is its actual temperature?
faulty-thermometer, thermometer-error, physics-note, class11-physics, temperature-scale, heat-and-temp, nepali-students, science-education, ctevt, physics-solution, class11-note, study-material, exam-preparation, thermometerscale, physics-trick,A Faulty Thermometer has its Lower and Upper Fixed Point 40°C and 95°C. If it reads 30°C what is its actual temperature?