TS EAMCET · Physics · Units and Dimensions
Which of the following does not follow first law of thermodynamics? work heat change in internal energy
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
First law of thermodynamics : It states that the change in internal energy of a system equals the net heat transfer into the system plus the net work done on the system. In equation form, the first law of thermodynamics is, ΔU=Q+ W Here, ΔU is the change in…
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Physics
- Tanks \(A\) and \(B\) open at the top contain two different liquids upto certain height in them. A hole is made to the wall of each tank at a depth \(h\) from the surface of the liquid. The area of the hole in \(B\) is twice that of in \(A\). If the liquid mass flux through each hole is equal, then the ratio of the densities of the liquids respectively, isTS EAMCET 2002 Easy
- If the resistance of each edge of a cube shaped wire frame as shown in figure below is \(R\), then the resistance between points 1 and 7 is
TS EAMCET 2018 Medium - A polyatomic gas has \(f\) vibrational degrees of freedom, then the ratio of the specific heat at constant pressure to that at constant volume will beTS EAMCET 2018 Easy
- A thin magnetic needle is placed in a magnetic field of 200 G with its axis at 30° to the direction of the field. Find the magnetic moment of the needle if it experiences a torque of 0.012 Nm in this field.TS EAMCET 2022 Easy
- A resistance of is connected to an alternating current source of . If the frequency of the A.C. source is , then the time taken by the current to change from its maximum value to the R.M.S. value isTS EAMCET 2021 Easy
- In an experiment the angles are required to be measured using an instrument in which 29 divisions of the main scale exactly coincide with the 30 divisions of the vernier scale. If the smallest division of the main scale is half a degree \(\left(=0.5^{\circ}\right)\), then the least count of the instrument isTS EAMCET 2020 Medium
More PYQs from TS EAMCET
- A body of weight \(50 \mathrm{~N}\) is placed on a horizontal surface as shown in the figure. The minimum force required to move the body is \(28.28 \mathrm{~N}\). The frictional force and the normal reaction are respectively.
TS EAMCET 2023 Easy - The ratio of longest wavelengths of the spectral lines in the Lyman and Balmer series of hydrogen spectrum isTS EAMCET 2023 Easy
- Choose the correct statement from following.TS EAMCET 2022 Hard
- A semi-circular loop of radius \(30 \mathrm{~cm}\) wire carries current \(6 \mathrm{~A}\). An uniform magnetic field \(0.5 \mathrm{~T}\) is present perpendicular to the plane of the loop. What is the magnitude of force exerted on the wire?TS EAMCET 2019 Easy
- A horizontal force \(\mathbf{F}=\left(g-x^2\right) \hat{\mathbf{i}} \mathrm{N}\) acts on a wooden block resting on a horizontal smooth surface. The work done to move the block from \(x=0\) to \(x=3 \mathrm{~m}\) (in \(\mathrm{J}\) ) is (Use \(g=10 \mathrm{~m} / \mathrm{s}^2\) )TS EAMCET 2021 Easy
- A block of mass \(m=25 \mathrm{~kg}\) sliding on a smooth horizontal surface with a velocity \(v=3 \mathrm{~ms}^{-1}\) meets the spring of spring constant \(k=100 \mathrm{~N} / \mathrm{m}\) fixed at one end as shown in figure. The maximum compression of the spring and velocity of block as it returns to the original position respectively are
TS EAMCET 2007 Medium