NURSING ANM AND GNM

NURSING EXAM QUESTIONS

PHARMACEUTICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Tyndall effect occurs due to
A
Absorption of light
B
Reflection of light
C
Transmittance of light
D
Scattering of light
Explanation: 

Detailed explanation-1: -The Tyndall effect, also known as the Tyndall phenomenon, is the scattering of a light beam by a medium containing microscopic suspended particles-for example, smoke or dust in a room-making a light beam entering a window visible.

Detailed explanation-2: -When a strong and converging beam of light is passed through a colloidal solution, its path becomes visible when viewed at right angles to the beam of light . This effect is called Tyndall effect and it is due to the scattering of light by the colloidal particles.

Detailed explanation-3: -Tyndall Effect: The phenomenon of scattering of light by dust, particles, smoke and water droplets suspended in air in colloidal form is known as “Tyndall effect” or “Tyndall Scattering”. It was first explained by John Tyndall in 1859.

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