Take a solution, a colloid, and a suspension in three different beakers. Pass a light beam from the side of the beaker and test whether they show Tyndall effect or not?

A colloidal solution is kept in dark and is illuminated by a beam of light. Brightness appears at the right angle of direction of light. This effect is called

A colloidal solution is kept in dark and is illuminated by a beam of light. Brightness appears at the right angle of direction of light . This effect is called.

Unplarised light is passed through a polaroid P_(1) . When this polarised beam passes through another polaroid P_(2) and if the pass axis of P_(2) makes angle theta with the pass axis of P_(1) , then write the expression for the polarised beam passing through P_(2) . Draw a plot showing the variation of intensity when theta varies from 0 to 2pi .

The french physicist Louis de Broglie in 1924 postulated that matter like radiation show a dual behaviour . He proposed the following relationship between the wavelength lamda of a material particle its linear momentum p and planck constant h lamda=h/p =h/(mv) The de broglie relation implies that the wavelength of a particle should decreases as its velocity increases . it also implies that for a given velocity heavier particles should have shorter wavelength than lighter particles. The waves associated with particles in motion are called matter waves or de broglie waves. These waves differ from the electromagnetic waves as they (i) have lower velocities (ii) have no electrical and magnetic fields and (iii) are not emitted by the particle under consideration . The experimental confirmation of the de-broglie relation was obtained when Davisson ans Germer in 1927 observed that a beam of electrons is diffracted by a nickel crystal . as diffraction a characteristics property of waves hence the beam of electron behaves as a wave, as proposed by de-broglie. de- Broglie wavelength of an electron travelling with speed equal to 1% of the speed of light

What happens in the following activities and why? A beam of light is passed through a colloidal solution