At what temperature do the Celsius and Fahrenheit scales coincide… - Vidyadip

Question

At what temperature do the Celsius and Fahrenheit scales coincide?

✓

Answer

-40°C.

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

Explore more

More "1 Marks Question" from Thermodynamics→Thermodynamics — all question types→Physics STD 11 Science question papers→Rajasthan Board STD 11 Science question papers→Rajasthan Board question paper generator→

Similar questions

Rocket motion is subjected to which law of Newton's motion?

An elevator can carry a maximum load of $1800 kg$ (elevator + passengers) is moving up with a constant speed of $2 m s ^{-1}$. The frictional force opposing the motion is $4000 N$. Determine the minimum power delivered by the motor to the elevator in watts as well as in horse power.

A stone of mass 0.25 kg tied to the end of a string is whirled round in a circle of radius 1.5 m with a speed of 40 rev./min in a horizontal plane. If the speed of the stone is increased beyond the maximum permissible value, and the string breaks suddenly, which of the following correctly describes the trajectory of the stone after the string breaks :
(a) the stone moves radially outwards.
(b) the stone flies off tangentially from the instant the string breaks.
(c) the stone flies off at an angle with the tangent whose magnitude depends on the speed of the particle?

For any arbitrary motion in space, which of the following relations are true?
(a) $\vec{v}_{\text {avg }}=(1 / 2)\left[\vec{v}\left(t_1\right)+\vec{v}\left(t_2\right)\right]$
(b) $\vec{v}_{ avg }=\left[\vec{r}\left(t_2\right)-\vec{r}\left(t_1\right)\right] /\left(t_2-t_1\right)$
(c) $\vec{v}(t)=\vec{v}(0)+\vec{a} t$
(d) $\vec{r}( t )=\vec{r}(0)+\vec{v}(0) t+(1 / 2) \vec{a} t^2$
(e) $\vec{a}_{\text {avg }}=\left[\vec{v}\left(t_2\right)-\vec{v}\left(t_1\right)\right] /\left(t_2-t_1\right)$
Here, 'average' means the average values of physical quantities related to the time interval $t_2$ and $t_1$.

Is Avogadro's number a dimensionless quantity?

What is meant by mass energy equivalence? Discuss its significance in Physics.

When a dielectric slab is gradually inserted between the plates of an isolated parallel-plate capacitor, the energy of the system decreases. What can you conclude about the force on the slab exerted by the electric field?

0.2 meter radius and 2 kg. A disc of mass m is rotating around its own axis. What will be the moment of Inertia of the disc?

Why is static friction called a self-adjusting force?

Energy possessed by a body by virtue of its position or configuration is known as ________.