uses of gamma rays

Another important constituent of air is carbon dioxide. As stated before, plants use it to synthesize carbohydrates, a basic food for all of us. It is also one of the green house gases that help to retain the warmth of the suns rays on earth, making weather conducive for l..

The transformation is given by Both the mass (226 - 4 = 222) and the charge (88 - 2 = 86) must be conserved. Radon is unstable and also decays with the emission of an α - particle: Radium emits γ - rays as well as α - particle but the emission of &..

1) Histologic and Cytologic methods involve Biopsy and histological examination of the affected tissue. For e.g., Paps test is employed to detect cervix cancer. Blood tests for abnormal WBC count for Leukaemia, Bone marrow Biopsy are also used to detect Leukaemia. 2) Non-invasive techniqu..

Astigmatism is the most common vision problem resulting in distorted images, as light rays are prevented from meeting at a common focus. Astigmatism may accompany Hypermetropia or Myopia What Causes Astigmatism? Normally the cornea is spherical in shape But in an astigmatic eye the ..

The following sign convention is used for measuring various distances in the ray diagrams of spherical mirrors: All distances are measured from the pole of the mirror. Distances measured in the direction of the incident ray are positive and the distances measured in th..

g - rays emitted by the radioisotopes can be used in the treatment of cancer. These radiations tend to destroy cancerous cells and the way can arrest the spreading of the cancerous cells. 6 0 CO is used in the treatment of tumours and cancers...

Radioactive Dating - All radioactive decays follow first order kinetics. Therefore, the half-life of a radioactive element is independent of the amount of sample. With the help of half-life values of a suitable radioisotope of an element, which is present in a rock, or in an artefact, the age of th..

To measure an angle we shall use two kinds of units, the degree unit and the radian unit. A degree(Sexagesimal system) is defined to be an angle formed by half-line (or a ray) rotated about its end point (1/360) of a complete revolution. Types of Angles: Acute ..

The light coming from an object enters the eye through cornea and pupil. The eye lens converges these light rays to form a real, inverted and diminished image on the retina. The light sensitive cells of the retina gets activated with the incidence of light and generate electric signals. ..

Working of an Eye - The light coming from an object enters the eye through cornea and pupil. The eye lens converges these light rays to form a real, inverted and diminished image on the retina. The light sensitive cells of the retina gets activated with the incidence of light and generate..