The threshold wavelength for photoelectric emission from a material is 4800 mathringA . Photoelectrons will be emitted from the material, when it is illuminated with light from a

Question

The threshold wavelength for photoelectric emission from a material is 4800 mathringA . Photoelectrons will be emitted from the material, when it is illuminated with light from a (A) 40 W blue lamp (B) 40 W green lamp (C) 100 W red lamp (D) 100 W yellow lamp

Tardigrade Admin · Accepted Answer

The wavelength of blue light is 4800 mathringA so material will emit photoelectrons when it is illuminated with light from a 40 W blue lamp.

Q. The threshold wavelength for photoelectric emission from a material is $4800 \overset{˚}{A}$ . Photoelectrons will be emitted from the material, when it is illuminated with light from a

40 W blue lamp

40 W green lamp

100 W red lamp

100 W yellow lamp

1000 W green lamp

The wavelength of blue light is $4800 \overset{˚}{A}$ so material will emit photoelectrons when it is illuminated with light from a $40 W$ blue lamp.

Q. The threshold wavelength for photoelectric emission from a material is 4800A˚ . Photoelectrons will be emitted from the material, when it is illuminated with light from a