Thermodynamics — Physics STD 11 Science — Question

Do two distinct poles actually exist at two nearby points in a magnetic dipole?

What is the value of restitution coefficient in a perfectly elastic collision?

How would the period of spring mess system change when it is med€ to oscillatc horizontally and then vertically?

During blood transfusion the needle is inserted in a vein where the gauge pressure is 2000Pa. At what height must the blood container be placed so that blood may just enter the vein? [Use the density of whole blood from Table 10.1].

Why does a parachute descend slowly?

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

How much is the Modulus of Rigidity of a fully rigid body?

The gravitational potential energy of a body at a distance r from the centre of earth is U. What is the weight of the body at that point?

The linear momentum of a car and a truck are equal. Which of the two will have greater speed?

For which condition, the distance and the magnitude of displacement of an object have the same values?