A polished metallic piece and a black painted wooden piece are kept in open in bright sun for a long time.

A wooden piece floats on water. . What is the reason?

A metallic piece displaces water of volume 15 mL. The volume of piece is :

Surface of some meltals lose their brightness when kept in air for a long time. Why?

Surface of metals loses their brightness when kept in air for a long time. Why ?

A piece of charcoal and a piece of shining steel of the same area are kept for a long time in an open lawn in bright sun. a) The steel will absorb more heat than the charcoal b) The temperature of the steel will be higher than that of the charcoal c) If both are picked up by bare hands, the steel will be left hotter than the charcoal d) If the two are picked up from the lawn and kept in a cold chamber, the choreal will lose heat at a faster rate than the steel

A piece of metal is 3 inch long. What is its length in cm?

A piece of charcol and a piece of shining steel of the same surface area are kept for a long time in an open lawn in bright sun.

A piece of charcoal and a piece of shining steel of the same surface area are kept for a long time in an open lawn in bright sun.