Dual Nature Of Matter Mock Tests

The de Broglie wavelength of a particle is given by (where p is the momentum):

Light of wavelength 400 nm is incident on a metal surface with work function 2.0 eV. The maximum kinetic energy of emitted photoelectrons is: (h = 4 × 10⁻¹⁵ eV s, c = 3 × 10⁸ m/s)

A photon of wavelength 600 nm is emitted. Its energy is: (hc = 1240 eV nm)

Light of wavelength 500 nm is incident on a metal surface. The work function of the metal is 2.0 eV. The maximum kinetic energy of emitted photoelectrons is:

A proton and an alpha particle are accelerated through the same potential difference. The ratio of their de Broglie wavelengths λ_p/λ_α is:

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

Light of wavelength 400 nm is incident on a metal surface with a work function of 2.0 eV. The maximum kinetic energy of the emitted photoelectrons is: (h = 6.626 x 10^-34 J s, c = 3 x 10^8 m/s, 1 eV = 1.6 x 10^-19 J)

Light of wavelength 400 nm is incident on a metal surface with work function 2.0 eV. The maximum kinetic energy of emitted photoelectrons is: (Take h = 6.626 × 10⁻³⁴ J s, c = 3 × 10⁸ m/s, 1 eV = 1.6 × 10⁻¹⁹ J)