Write the differences between transparent, translucent and opaque materials giving two examples of each.Name the separation method used in the following: a) Salt from pulses b) Iron pins from sand c) Husk from grains. d) Beads of different colours. e) Cream from milk. f) Mud from muddy water. g) Oil and water. h) Small stones from rice. i) Tea leaves from tea. j) Grains from stalk after harvesting.
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Answer:
the difference between transparent translucent and Opaque materials is that transparent materials let the light pass Holi true the the them but in the case of translucent materials the light passes partially that is the light is blocked at some amount but maximum light passes in this case also but in the case of the light is either scattered or absorbed by the material hence the the light does not pass through the material and a shadow region is formed at before the object for example plain glass can be said as transparent material where as a translucent material can be the sunglasses and Opaque material is like a brick wall.
name the separation method used in the following Salt from pulses can be separated by the help of series then iron pins from sand can be separated from magnet husk from grain by winnowing then cream from milk can be separated by churning made from muddy water by sedimentation and decantation oil from water can be separated by fractional distillation small stones from rice can be separated by sieving or hand picking tea leaves from tea can be separated by ceiling grains from Stark after harvesting can be separated by sieving
Transparent objects allow all the light to pass through them, translucent ones allow partial light to pass, whereas opaque ones allow no light to pass through.Examples of transparent items are
glass, water, and air.
translucent include things like
frosted glass and wax paper.
opaque material
Concrete, wood, and metal
q2= Iron pins from sand – using a magnet or by hand
Wheat grains from husk – Winnowing or filtration.
cream from milk -centrifugation. Centrifugation is a process where a mixture can be separated through spinning
An oil water separator is a piece of equipment used to separate oil and water mixtures into their separate components. There are many different types of oil-water separator
mud from muddy water we can use filtration
Small stones from rice- winnowing.
Tea leaves from tea-Filtration
Grains from stalk after harvesting.- threshing.