When light of wavelength 350 nm is incident on a metal surface, the stopping potential of the photoelectrons is 0.500 V

What is the threshold (cutoff) frequency of this metal? (c = 3.00 × 108 m/s, h = 6.626 × 10-34 J ? s, 1 eV = 1.60 × 10-19 J)
A) 3.47 × 1014 Hz
B) 3.74 × 1014 Hz
C) 4.73 × 1014 Hz
D) 7.36 × 1014 Hz


D

Physics & Space Science

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In the brain, a typical frequency for an alpha wave is ______ Hz and for a delta wave is ______ Hz

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Physics & Space Science