Question

match the column:-
Group A

Group B

1) Electroplating -

a) Pressure cooker

2) Anodising -

b) Silver plated spoons

c) Coating of tin on copper

d) Coating of Zinc on iron​​

Answer 1

Answer:

the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.

change in direction of propagation of any wave as a result of its travelling at different speeds at different points along the wave front.

measurement of the focusing characteristics of an eye or eyes.

Answer 2

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• 1) Electroplating -b) Silver plated spoons
• a) Pressure cooker-2) Anodising -
• b) Silver plated spoons-1) Electroplating -
• c) Coating of tin on copper-Tinning
• d) Coating of Zinc on iron-galvanising

Thanks