Question 16
Three solid copper spheres, X, Y and Z, are heated to the same temperature.
| sphere | diameter | colour of surface |
|:---:|:---:|:---:|
| X | 2*d* | black |
| Y | *d* | white |
| Z | 2*d* | white |
Which row gives the order for the rate of emission of radiation?
| sphere | diameter | colour of surface |
|:---:|:---:|:---:|
| X | 2*d* | black |
| Y | *d* | white |
| Z | 2*d* | white |
Which row gives the order for the rate of emission of radiation?
