Download App

PART - 2 CH - 10 Thermal Properties of Matter — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsPART - 2 CH - 10 Thermal Properties of Matter2 Marks
Question
If the temperature of a substance is $-50^{\circ}\text C $ centigrade scale, then find its tempeature on (i) Fahrenheit and (ii) Kelvin scale.
✓

Answer

We know that
$\begin{aligned} \frac{ T _{ C }}{100} & =\frac{ T _{ F }-32}{180} \\ \frac{-50}{5} & =\frac{ T _{ F }-32}{9} \\\therefore~ T_{ F } & =\frac{-50 \times 9}{5}+32 \\ T_{ F } & =-90+32=-58^{\circ} F \end{aligned}$
(ii) $\frac{ T _c}{100}=\frac{ T _{ K }-273}{373-273}$
$\begin{aligned} \frac{ T _{ C }}{100} & =\frac{ T _{ K }-273}{100} \\ T_{ K } & = T _{ C }+273 \\ & =-58^{\circ} C +273=215 K\end{aligned}$

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 "2 Marks Questions" from PART - 2 CH - 10 Thermal Properties of Matter→PART - 2 CH - 10 Thermal Properties of Matter — all question types→Physics STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Prove that the horizontal range is same when angle of projection is:
  1. Greater than $45^\circ$ by certain value.
  2. Less than $45^\circ$ by the same value.
→
Is it possible for a particle to describe a curved path if no force acts on it? Does your answer depend on the frame of reference chosen to view the particle?
→
What is the Bulk modulus for a perfect rigid body?
→
A conducting circular loop having a radius of 5.0cm, is placed perpendicular to a magnetic field of 0.50T. It is removed from the field in 0.50s. Find the average emf produced in the loop during this time.
→
The internal resistance of an accumulator battery of emf $6V$ is $10\Omega$ when it is fully discharged. As the battery gets charged up, its internal resistance decreases to $1\Omega.$
The battery in its completely discharged state is connected to a charger that maintains a constant potential difference of $9V.$ Find the current through the battery $(a)$ just after the connections are made and $(b)$ after a long time when it is completely charged.
→
The area of cross - section of a steel wire is $1 cm^2$. How much force would be required to double its length? $\left(Y=2 \times 10^{12}\right.$ $\text {dyne}$ $\left./ cm ^2\right)$.
→
Ravi came to stay in a multistoried building. He noticed that motor supplying water to the second floor is power rating $\text{X k W}$ while of that supplying water to $8^{th}$ floor is $\text{Y k W}$. He asked his father the reason behind the difference of the power ratings. His father explained him the reason.
  1. What values does Ravi posses?
  2. Which power rating is more $X$ or $Y\ ?$
  3. A motor pumps up $1000\ kg$ of water through a height of $10$ min $5 s$. If the efficiency of the motor is $60\%$, calculate the power of the motor in kilowatt.
→
A steel scale measures the length of a copper rod as 80.00 cm when both are at $20^{\circ} \mathrm{C}$, the calibration temperature for the scale. What would the scale read for the length of the rod when both are at $40^{\circ} \mathrm{C}$ ? $\alpha$ for steel $=11 \times 10^{-6}\left({ }^{\circ} \mathrm{C}^{-1}\right)$ and $\alpha$ for copper $=17 \times 10^{-6}\left({ }^{\circ} \mathrm{C}^{-1}\right)$.
→
What is called stream line flow?
→
Can a particle have acceleration at an instant if its velocity is zero at that instant? Give example.
→