A LTUN thin glass sheet.E QUESTIONSA solar cooker consists of an insulatebox B which is painted black from inA metal container C, painted black frioutside, is placed in the solar cooker boThe box and container are painted blacbecause a black surface absorbs more herays than any other colour. In order tprevent the loss of absorbed heat in a solaheating device, the black painted metal bonis placed inside an insulated (with thermocalor glass wool to prevent heat losses due toconduction, convection and radiation)wooden box B and is covered with atransparent thick glass sheet cover Goverthe top of coker box. A plain mirror reflecoR is also attached to the boxThe food material to be cooked is proin the metal container. The containcovered with a black lid and it is plaked is placedthe solar cooker box. The cookerthen covered with a glass sheet lid.solar cooker is kept in sunshineIt is placed inCooker box ishine and its​