Is work function formula?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
The work function itself is a property, not a formula. However, related formulas include:
- Einstein's photoelectric equation: hν = φ + KE_max
- Threshold frequency: ν₀ = φ/h
- Threshold wavelength: λ₀ = hc/φ
Where h is Planck's constant, ν is frequency, c is speed of light, and φ is the work function.
Is power equal to W/t?
Yes, power (P) = W/t, where:
- P = power in watts (W)
- W = work done in joules
- t = time in seconds
Power measures the rate of doing work or energy transfer. One watt equals one joule per second. Alternative formulas: P = F × v (force times velocity).
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