Download App

Heat and Thermodynamics — Physics STD 11 — Question

Tamilnadu BoardEnglish MediumSTD 11PhysicsHeat and Thermodynamics2 Marks
Question
What is meant by ‘Mechanical equilibrium’?
✓

Answer

A system is said to be in mechanical equilibrium if no unbalanced force acts on the thermo dynamic system or on the surrounding by thermodynamic system.

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 Heat and Thermodynamics→Heat and Thermodynamics — all question types→Physics STD 11 question papers→Tamilnadu Board STD 11 question papers→Tamilnadu Board question paper generator→

Similar questions

Why should the object be moved at constant velocity when we define potential energy?
→
What is a isobaric process?
→
Define relative density (or) specific gravity?
→
Briefly explain how such a quasi-static process can be carried out.
→
Calculate the height to which water will rise in capillary tube of $1.5 mm$ diameter. Surface tension of water is $7.4 \times 10^{-3} Nm ^{-1}$.
→
Give an example for scalar product of two vectors.
→
By sucking through a straw, a student can reduce the pressure in his lungs to $750 mm$ of $Hg$ (density $=13.6 g cm ^{-2}$ ). Using the straw, he can drink water from a glass upto a maximum depth of.
→
There is a stick half of which is wooden and half is of steel, (i) it is pivoted at the wooden end and a force is applied at the steel end at right angle to its length (ii) it is pivoted at the steel end and the same force is applied at the wooden end. In which case is the angular acceleration more and why?
→
If R is the radius of the Earth and g is the acceleration due to gravity on the Earth’s surface. Find the mean density of the Earth.
→
A cyclist is riding with a speed of $27 kmh ^{-1}$. As he approaches a circular turn on the road of radius $30 m ^{-2}$, he applies brakes and reduces his speed at the constant rate $0.5 ms ^{-2}$. What is the magnitude and direction of the net acceleration of the cyclist on the circular turn?
→