Physics

If at the smallest portion of a liquid some force is applied with a piston, than the bigger pistons will feel a much greater force than the applied force.

The change per unit length or per unit volume of an object is called stain. Again internal restoring force acting perpendicularly per unit area of the body is called stress. Whenever an external force deforms a body, strain develops. Again, applied external force for developing certain amount of stain is equal to the internal restoring … Read more

Linear motion : If a body is in motion along a straight line, that is, if the motion of a body is restricted on a straight line its motion is called linear motion. The motion of a car in a straight street is linear motion. Rotational motion : When a body rotates around a particular … Read more

All measurements have some limitations of accuracy. The accuracy of the measurement depends on the skill of the observer and the instruments used. Suppose a meter scale is graduated in centimeter and millimeter. If we want to measure the length of this book we will get the result probably up to 0.1cm accurately. Accuracy may … Read more

CT scan is the abbreviation of the word Computed Tomography Scan. Tomography means to create an image of the slice (or two-dimensional part) of a three-dimensional object.

Radiotherapy is the therapy where radioactive isotopes are used.

Rontgen is a unit of ionizing radiation, the amount producing one electrostatic unit of positive or negative ionic charge in one cubic centimeter of air under standard conditions.

Crescograph is the instrument to record the growth of plants.