______ is the measure of the relative clarity of a liquid.

Question

Question

This question was previously asked in

SSC CGL 2021 Tier-I (Held On : 18 April 2022 Shift 1)

Answer 1

The correct answer is Turbidity.

Key Points

Turbidity is the measure of the relative clarity of a liquid.
It is an optical characteristic of water and is a measurement of the amount of light that is scattered by material in the water when a light is shined through the water sample.
The higher the intensity of scattered light, the higher the turbidity.
The distance at which the disk disappears is the water clarity reading, which is recorded in centimetres.

Additional Information

Turbidity is commonly measured in Nephelometric Turbidity Units (NTU).
The nephelometric method compares how light is scattered in a water sample against the amount of light scattered in a reference solution.
An electronic hand-held meter is often used to measure turbidity.
The WHO (World Health Organization), establishes that the turbidity of drinking water shouldn't be more than 5 NTU, and should ideally be below 1 NTU.