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Rules for image formation by concave mirror/convex mirror Rules for image formation by concave mirror/convex mirror :- The image is formed at the point where any two of the following four reflected rays meet or appear to meet/diverge after reflection from the spherical mirror. When the rays actually meet, a real image is formed…
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New Cartesian Sign Convention New Cartesian Sign Convention :- To get the formula for reflection by spherical mirrors and refraction by spherical lenses, we have to follow a sign convention. We will use the Cartesian sign convention, according to which all distances are measured from the pole of the spherical mirror or the…
Spherical Mirror Spherical mirrors are mirrors with curved surfaces that are shaped like a section of a sphere. These mirrors have many applications, including in telescopes, microscopes, cameras, and many other optical devices. They are commonly used to reflect light and form images of objects. Types of Spherical Mirror They come in two…
Laws of Reflection Laws of Reflection :- All surfaces(perfectly smooth or rough) which can reflect light, obey the following two laws of reflection :- (i) First law :- The angle of incidence (i) is equal to the angle of reflection (r). i.e., ∠i = ∠r (ii) Second law :- The incident ray, the…
Reflection of light Reflection of light :- When light rays strike the boundary of two media such as air and glass, a part of light is bounced back into the same medium. This is called reflection of light. Figure (a) shows a bundle of parallel light rays reflecting from a mirror-like surface. In this…
Properties of Electric Field Lines The properties of electric field lines are: 1. Electric field lines originate from positive charges and terminate on negative charges. The lines never start or end in empty space because the electric field is created by the presence of charges. 2. The number of electric field lines leaving a…
Magnetic Field Intensity | Intensity of Magnetic Field | Magnetic Field due to Bar Magnet Magnetic Field Intensity | Intensity of Magnetic Field | Magnetic Field due to Bar Magnet :- The space around a bar magnet/current carrying conductor/current carrying solenoid in which magnetic effects can be experienced is called magnetic field. We know…
Nuclear Stability Nuclear Stability :- Atomic nucleus is a densely packed collection of protons and neutrons. The very large electrostatic repulsive forces between protons should cause the nucleus to fly apart but nucleons are able to stay together because of strong Nuclear Force. There are 118 different elements. All these elements have isotopes and as…
Nuclear Forces | Nuclear Forces Definition Nuclear Forces | Nuclear Forces Definition :- In previous article Binding Energy Per Nucleon we have seen that for average mass nuclei the binding energy per nucleon is approximately 8 MeV, which is very large. Therefore, a question came to the minds of scientists that what force holds…
Binding Energy Per Nucleon | Binding Energy Curve Binding Energy Per Nucleon | Binding Energy Curve :- The stability of a nucleus is not measured by it’s binding energy, but it is measured by “binding energy per nucleon”. If B.E./nucleon of a nucleus is less, the nucleus is less stable whereas the nucleus is…
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