Question

Find threshold frequency it work function is 3.3x10 joule​

Answer 1

Answer:

You haven't included the power present on the 10. Yet, I am giving the answer on the same behalf. You can solve your question easily by following the steps:

Explanation:

W₀ = h v₀

or, v₀ = W₀/h = 3.3 x 10/6.6 x 10³⁴ = 5 x 10⁻³⁴s⁻¹

Answer 2

Answer:-

• Energy=3.3×10J
• Plancks Constant=h
• Frequency=v

According to Planck's Quantum theory

$\boxed{\sf E=hv}$

$\\ \sf\longmapsto v=\dfrac{E}{h}$

$\\ \sf\longmapsto v=\dfrac{3.3\times10 J}{6.626\times 10^{-27}Js}$

$\\ \sf\longmapsto v=0.498\times 10^{28}s^{-1}$

$\\ \sf\longmapsto v=4.98\times 10^26Hz$