Alpha-Particle scattering and Rutherford’s Nuclear Model of Atom
Rutherford proposed a new model of the atom based on Alpha-Particle Scattering experiment.
In 1911, Ernst Rutherford suggested some experiments to H. Geiger and E....
Polarization of Light
Polarization of light
Light propagates as transverse EM waves. The magnitude of electric field is much larger as compared to magnitude of magnetic field. We...
Diffraction of Light
Diffraction is the slight bending of light as it passes around the edges of an object. The amount of bending depends on the relative...
Interference of Light Waves
Interference of Light Waves
When two light waves of same frequency travel simultaneously in the same direction then, due to their superposition, the resultant intensity...
Coherent and Incoherent Waves
Coherent Waves:
Coherence is attained when there is a constant phase difference in two or more waves over time.
Two waves are said to be in...
Young’s Double Slit Experiment (YDSE)
Young’s Double Slit Experiment (YDSE)
Monochromatic light (single wavelength) falls on two narrow slits S1 and S2 which are very close together acts as two...
Reflection and Refraction of Light Waves: Explanation using Huygens Principle
Reflection:
Each point on a plane wavefront can be considered to be a circular ripple. The time taken for the ripple at A to get...
Huygens Principle
In 1678, Huygens proposed the waves theory of light. According to Huygens, light travels in the form of waves. These waves after emerging from...
Wave Optics
Wave optics is the study of the wave nature of light. Interference and diffraction are two main phenomena giving convincing evidence that light is...
Reflecting Type Telescope (Cassegrian telescope)
Reflecting type Telescope (Cassegrian telescope)
In such telescope, one objective lens is replaced by a concave parabolic mirror of large aperture, which is free from...