Question
Calculate the temperature whose value is the same on the Celsius and Fahrenheit scale?

Answer

Let the required temperature in both the scales be x.
i.e., $\text{C}=\text{F}=\text{x}$
Now $\frac{\text{C}}{100}=\frac{\text{F}-32}{180}$
$\therefore\frac{\text{x}}{100}=\frac{\text{x}-32}{180}$
$180\text{x}=100\text{x}-3200$
$80\text{x}=-3200$
$\Rightarrow\text{x}=-40$
- 40ºC is equivalent to - 40ºF.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A particle moves on a given straight line with a constant speed v. At a certain time it is at a point P on its straight line path. O is a fixed point. Show that $\overrightarrow{\text{OP}}\times\overrightarrow{\text{v}}$ is independent of the position P.
If the road of the previous problem is horizontal (no banking),The road is horizontal (no banking) what should be the minimum friction coefficient so that a scooter going at 18km/hr does not skid?
A heavy box is kept on a smooth inclined plane and is pushed up by a force F acting parallel to the plane. Does the work done by the force F as the box goes from A to B depend on how fast the box was moving at A and B? Does the work by the force of gravity depend on this?
The length of steel wire got increases by 0.25 cm by hanging a weight of 2.5 kg . Find the work done in pulling the wire $\left(g=10 m / s ^2\right)$
A bulb is hanging over a table. At which portion of the table is the illuminance maximum? If a plane mirror is placed above the bulb facing the table, will the illuminance on the table increase?
Show that the internal energy of the air (treated as an ideal gas) contained in a room remains constant as the temperature changes between day and night. Assume that the atmospheric pressure around remains constant and the air in the room maintains this pressure by communicating with the surrounding through the windows, doors, etc.
Why is the value of $C _{ P }$ greater than $C _{ v }$ ?
A skilled gun man always keeps his gun slightly tilted above the line of sight while shooting. Why?
Explain why cooking is faster in a pressure cooker.
Temperature in the freezer of a refrigerator is being maintained at -13°C and room temperature on a particular day was 42°C. Calculate the coefficient of performance of the refrigerator.