Dual Nature of Radiation and Matter

Who proposed the concept of quantization of energy in 1900 to explain blackbody radiation?

According to Einstein's photoelectric equation, the maximum kinetic energy of photoelectrons is given by:

The de Broglie wavelength of a particle is inversely proportional to its:

The threshold frequency in the photoelectric effect depends on:

In Davisson-Germer experiment, electron diffraction confirmed:

If the wavelength of an electron is 0.1 nm, what is its momentum? (h = 6.63 × 10⁻³⁴ Js)

Which phenomenon cannot be explained by the wave theory of light but is explained by its particle nature?

The expression for de Broglie wavelength of an electron accelerated through a potential difference V is:

In Compton scattering, the increase in wavelength Δλ of scattered X-rays is given by:

For an electron with kinetic energy 150 eV, calculate its de Broglie wavelength. (Use m = 9.11 × 10⁻³¹ kg, h = 6.63 × 10⁻³⁴ Js, 1 eV = 1.6 × 10⁻¹⁹ J)