Pierakstīties
WAEC - Physics (2004 - No. 47)
In which of the following devices is the principle of photoelectric effect not applicable?
close-circuit television camera
burglar alarm
solar cells
periscope
komentāri (0)
Piesakieties, lai komentētu
Reklāma
Ļaujiet javascript pareizi ielādēt šo lapu
