AP EAMCET Engineering 20 Apr 2019 Shift 2 Paper

Section: Chemistry

Question : 122 of 160

Marks: +1, -0

When a certain metal was irradiated with light of frequency 4.0 × 1016s−1. the photoelectrons emitted had four times the kinetic energy as the kinetic energy of photoelectrons emitted when the same metal was irradiated with light of frequency 2.0 × 1016s−1. The threshold frequency (υ0) of the metal in s−1 is

2 × 1016
4 × 1016
2.5 × 1016
1.33 × 1016

Validate

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