The heat transfer by radiation from a mild steel surface is to be reduced by reducing the emissivity of the surface. This can be best achieved by__________________?
(A) Painting the surface black
(B) Painting the surface white (with aluminium paint)
(C) Giving the surface a mirror finish
(D) Roughening the surface
Share this... |
Facebook
|
Twitter
|
Linkedin
|
Whatsapp
|
Your email address will not be published. Required fields are marked *