light being an electromagnetic wave i.e, it consists of electric and magnetic fields .....why cant light induce current in conductors just like how a radio wave do ?

 

Probably has something to do with wavelength.

The human eye responds to wavelengths from around 390 to 750 nanometers.

A half wave dipole (for instance) at those wavelengths would be rather short. A human hair might be 100 micrometers in diameter or 100,000 nanometers.

 

For infared light, which the upper limits are near 940nm, your talking about a 470nm antenna (right?). No coffee yet, what is that frequency... ok... 3.19 Terahertz We are approaching that with switching speed now...

 

Add to this that by physics light is both a partical and a wave; photons "vibrating" at a specific frequency and that frequency determines the "color" perceived by whatever it hits.

It is neither electrical nor magnetical, it's one of those oddities in physics where no perfect answer yet exists.

 

It sort of does...
For example;
http://holbert.faculty.asu.edu/eee560/spc-chrg.html

There's also the photovoltaic effect of course.