Light cannot pass through
opaque substance
transparent substance
translucent substance
liquids
Light can easily pass through
none of these
In how many ways heat flow ?
1
2
3
4
Transmission of heat is not possible through
iron
copper
aluminium
wood
Which process helps the transmission of heat in solids ?
conduction
convention
radiation
isolation
An example of insulator is
Light can partially pass through
Light emitters are called
light
emitter
sources of light
Wood, coal are the
sources
heat
sources of heat
effects of heat
To observe solar ellipse people uses
naked eye
power glasses
black glasses
