On average, cost of basic single coat of paint application on walls and ceiling in one 150 ft 2 bedroom vary from $125 to $165 excluding paint expenses and actual prices will be determined by a number of factors.ost to paint house interior estimated as a charge for painting all rooms including closets and hallways. All prices calculated based on one coat of paint application on the ceilings and two coats of paint application on walls using a paint roller and brush with no custom work involved.
Convex is used to describe something that curves outwards in the middle. ...the large convex mirror above the fireplace. Synonyms: rounded, bulging, protuberant, gibbous More Synonyms of convex
1 A convex lens is supposed to be made up of number of prisms with the base of each prism towards the centre of the lens.  When rays parallel to the principal axis pass through a convex lens, they are bent inwards.