Mechanical Properties of Fluids — Physics STD 11 Science — Question

A lift is accelerated upward. Will the apparent weight of a person inside the lift increases, decreases or remains the same relative to its real weight? If the lift is going with uniform speed, then?

Can two isotherm curves be intersected each other? Why?

How is the motion of parachute different from a stone dropped from certain height?

Can a moving body have relative velocity zero with respect to another body? Give an example.

What is meant by angular diameter of moon?

If a drop of water falls on a hot plate, it takes long time to evaporate. Why?

Under the condition is the minimum restoring force on a particle moving in simple harmonic motion?

Name two Indian born physicists who have been awarded Nobel Prize in physics.

A metal bar of length L, area of cross-section A, Young's modulus Y and coefficient of linear expansion a, is clamped between two stout pillars. What is the force exerted by the bar when it is heated through t°C?