1800-150-456-789
FlagBACK
Flag Thermal Physics> Question:A glass tube of uniform bore and...
question mark

Question:A glass tube of uniform bore and length 133cm is to be filled with mercury so that the volume of the tube above the mercury level remains same at all temperatures.Calculate the length of the mercury column .Given gamma glass=2.6*10^-5/degree celcius and gamma mercury =1.82*10^-5/degree celcius ?

parmanand tiwari , 7 Years ago
Grade 12th pass
anser 2 Answers
Jitendar mishra

Last Activity: 7 Years ago

Gamma of glass × lenght of glass = gamma of Mercury × length of Mercury And . 19 cm Ok any other questions

Guru Yash

Last Activity: 3 Years ago

As level is same at all temperature so,
∆L of glass =∆L of mercury
We are given  gamma of both but for linear expansion we consider alpha
We know , gamma =3alpha
 
Let's apply
 
∆L(g)=∆L(Hg)
L * alpha(g)*∆T=L' * alpha(Hg)*∆T
 L*alpha(g)=L' * aplha(Hg)
133 * 3 * 2.6*10^-5 = L' *3*18.2*10^-5
L' = 19 cm

star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Other Related Questions on thermal physics

question mark
A container filled with a sample of an Idea gas at the pressure of 1.5atm. the gas is compressed isothermal ly to one fourth of its original volume. What is the new pressure of the gas?
 
thermal physics
0 Answer Available

Last Activity: 2 Years ago

question mark
how do we know the electric field due to an electric dipole of dipole moment P at distance r from the centre of dipole is fiven by .. where theta is angle between p amd r vector..
thermal physics
0 Answer Available

Last Activity: 3 Years ago

question mark
A A mole of helium gas initially at stp undergoes an isovolumetric process in which its pressure falls to half its initial value. The work done by gas is
 
thermal physics
0 Answer Available

Last Activity: 3 Years ago

question mark
  1. 5000 J of heat are added to two moles of an ideal monatomic gas, initially at a temperature of 500 K, while the gas performs 7500 J of work. What is the final temperature of the gas? step by step please
thermal physics
1 Answer Available

Last Activity: 3 Years ago

question mark
Please help me with the  answer of this question  related to radiation graph
thermal physics
0 Answer Available

Last Activity: 3 Years ago