Mechanical Properties of Fluids — Physics STD 11 Science — Question

When the frequency of the AC source in an LCR circuit equals the resonant frequency, the reactance of the circuit is zero. Does it mean that there is no current through the inductor or the capacitor?

If the mass M is hung on a spring and it gets extended a distance x. What will be the magnitude of the force constant of that spring?

A rectangular brick is kept on a table with a part of its length projecting out. It remains at rest if the length projected is slightly less than half the total length but it falls down if the length projected is slightly more than half the total length. Give reason.

A tank with a square base of area 1.0m² is divided by a vertical partition in the middle. The bottom of the partition has a small-hinged door of area 20cm². The tank is filled with water in one compartment, and an acid (of relative density 1.7) in the other, both to a height of 4.0m. compute the force necessary to keep the door close.

Which particle of any object has the lowest moment of inertia?

Which of the following is the most precise device for measuring length:
a screw gauge of pitch 1mm and 100 divisions on the circular scale.

Solve with due regard to significant figures:

Which gas monatomic and diatomic, will have greater specific heat at room temperature?

Two soap bubbles have radii in the ratio 2 : 3. Calculate the ratio of work done in blowing these bubbles.