|
The no. of wavelengths in the visible spectrum |
|||||||
|
a) |
4000 |
b) |
6000 |
c) |
2000 |
d) |
Infinite |
|
The no. of wavelengths in the visible spectrum |
|||||||
|
a) |
4000 |
b) |
6000 |
c) |
2000 |
d) |
Infinite |