C LANGUGE SPACE
#include<stdio.h>
int main()
{
printf("nn\n\nnn\n");
printf("nn/n/nnn/n ");
return 0;
}
Photoelectric effect
Photoelectric effect photo means photons (light particle) light speed 3*10^8 m/s electric means electricity VISIBLE LIGHT VIBGYOR NON VISIBLE UV RAY INFRADE RAY ALWAYS DEPEND METAL SURFACE EX ALKALI METALS group 01 11 Na 19 K 37 Rb 55Cs 87Fr (visible light ) not alkali metal Ex Al Zn USE UV RAY NON METAL EXTERIME UV RAY Photoelectric effect DEFINNATION When a light of suitable frequency is incident on a surface of metal then the electrons are emitted from metal surface. This phenomenon is known as photoelectric effect . Threshold frequency is defined as the minimum ...
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