MCQOPTIONS
Saved Bookmarks
| 1. |
Given that a photon of light of wavelength 10,000 \[\overset{\text{o}}{\mathop{\text{A}}}\,\] has an energy equal to 1.23 eV. When light of wavelength 5000 \[\overset{\text{o}}{\mathop{\text{A}}}\,\] and intensity \[{{I}_{0}}\] falls on a photoelectric cell, the saturation current is \[0.40\times {{10}^{-6}}\]\[\overset{\text{o}}{\mathop{\text{A}}}\,\] and the stopping potential is 1.36 V; then the work function is |
| A. | \[0.43\,eV\] |
| B. | \[1.10\,eV\] |
| C. | \[1.36\,eV\] |
| D. | \[2.47\,eV\] |
| Answer» C. \[1.36\,eV\] | |