The velocity of light, c, is 3.00 times 10^8 m/s Planck\'s constant h, is 6.626
ID: 494063 • Letter: T
Question
The velocity of light, c, is 3.00 times 10^8 m/s Planck's constant h, is 6.626 times 10^-34 J-s In a photoelectric experiment, Joan, a research scientist, measured the kinetic energy of ejected electrons as a function of frequency of radiation hitting a metal surface. Following is a plot of her result: The point v_0 has lambda = 6.80 times 10^7 in v_0 (with the correct number of significant figures) is 6.80 times 10^-7 m 4.41 times 10^14 S^-1 6.63 times 10614 S^-1 2.27 times 10^-15 S^-1 7.25 times 10^-15 S^Explanation / Answer
use the below formula which relates frequency and wavelength:
vo = c/lambda
= (3.00*10^8 m/s)/(6.80*10^-7 m)
= 4.41*10^14 s-1
Answer: B
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