Question

A faulty thermometer has its fixed points marked at $6^{\circ}$ and $96^{\circ}$. What is the correct temperature on the Centigrade scale when this thermometer reads $87^{\circ}$

• A. $83^{\circ} C$
• B. $93^{\circ} C$
• C. $90^{\circ} C$
• D. $85^{\circ} C$

Answer 1

Answer: (C)

If a thermometer is wrong calibrated then,
If $X$ the temperature reading on the faulty thermometer scale then,
$
t =\frac{( X - LFP }{( UFP - LFP )} \times 100 \text {. Where, } t =\text { actual reading. }
$
So, for a faulty reading of $87^{\circ} C$ the actual reading can be found by using above formula is $=90^{\circ} C$