Question

Golden view of sea shell is due to
(A) Diffraction
(B) Dispersion
(C) Polarisation
(D) reflection

Answer 1

Hint: Follow the properties of the scattering of light waves and its properties. It depends on the wavelength and the medium through which it travels. Here we will go through all the terminologies with example and then will identify the correct option.

Complete step by step answer:
-The slight bending of the light when it passes around the edge of an object is due to the diffraction. For example – Light Entering and bending around the corners of the doors and windows.
-The phenomenon of splitting one light into the components of colourful lights is known as the dispersion of the light. For Example Rainbow during the rainy-season and when light is passed through prism it splits into rainbow like structure.
-The reflection of light is the change in the direction of the wave-front between the two different mediums. For Example – When you keep a pencil in a glass of water it seems to be broken or two parts of the pencil inside the water and outside the water appears in the bending form.
-The polarization of the light is the process of transforming un-polarized light into the polarized light. The property of the wave to oscillate with more than one orientation is known as the polarization. When the ray of light falls on the sea shell, first the small amount of light gets refracted that it is slightly polarised and lastly almost the light gets reflected back in the form of fully polarised light. Therefore, the view of the sea shell is golden due to polarisation.

Hence, from the given multiple choices – the option C is the correct answer.

Note:Always go through all the options and its terminology to solve these types of word statement questions. Gradually know the difference between all the given options and then accordingly justify the correct answer.