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irga5000 [103]
3 years ago
13

2 Points

Chemistry
2 answers:
lapo4ka [179]3 years ago
7 0

Answer:

V = 7.55 x 10∧13 Hz (A)

Explanation:

E= hv

E is energy

h is constant (6.626 x 10∧-34)

v= frequency

V = E/h

V = (5 x 10 ∧ -20) / ( 6. 626 x 10∧-34) = (5/6.626 ) x 10∧ -20-(-34)

V = 0.75460307878 X 10∧-20+34 = 0.75460307878 x 10∧14

V = 7.55 x 10∧13 Hz (A)

Dennis_Churaev [7]3 years ago
3 0

Answer:

The frequency is 7.55 *10^13 Hz (option A)

Explanation:

Step 1: Data given

Energy = 5.0 * 10^-20 J

Planck's constant = 6.626 * 10^-34 J*s

Step 2: Calculate the frequency

E  = h *f

⇒ Energy =  5.0 * 10^-20 J

⇒ h = Planck's constant = 6.626 * 10^-34 J*s

⇒ f = The frequency (in Hz) = TO BE DETERMINED

f = E/h

f= 5.0 * 10^-20 J / 6.626 * 10^-34 J*s

f = 7.55 *10^13 Hz

The frequency is 7.55 *10^13 Hz (option A)

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