Introduction to Physics

The ampere is the constant current which, flowing through two straight parallel infinitely long conductors of negligible cross-section, and placed in vacuum 1 m apart,…

To measure a quantity, we always compare it with some reference standard. To say that a rope is 10 metres long is to say that…

Sir Issac Newton was the first one to give an exact definition for force. “Force is the external agency applied on a body to change…

Isotopes are the variants of a definite element. Atoms of the same element having different mass number are called isotopes. That is, in isotopes of…

Angiography is such an imaging test where X-ray is used to view the blood vessels of the body. This test is used to study whether…

ETT is the short form of ‘Exercise Tolerance Test’. It is a test of the stimulated heart. Electric activities or functions (rate or rhythm) of…

The word radiotherapy is the abbreviated form of the word ‘Radiation therapy’. Different diseases like cancer, abnormal nature of thyroid gland, some diseases concerning blood…

Generally endoscopy means looking inside something. But by endoscopy we mean looking interior of a hollow organ or cavity of the body for medical reasons…

ECG is the abbreviated form of the word electrocardiogram. ECG is a diagnostic procedure that is routinely used to assess the electrical and muscular functions…

MRI is the abbreviated form of the English term ‘Magnetic Resonance Imaging’. In MRI machine extended image of an organ or place of the body…