The de Broglie wavelength is a characteristic property of particles. It is determined by the momentum of the particle, and it relates to the wave-like behavior of matter. According to de Broglie`s equation, the wavelength of a particle is inversely proportional to its momentum.
In this question, it is stated that an electron and a photon have the same de Broglie wavelength. This means that they both have the same momentum. The correct option is 1: linear momentum.
Linear momentum is a physical quantity that describes the motion of an object. It is the product of the mass and velocity of an object. Since the de Broglie wavelength is the same for both the electron and the photon, it implies that their momenta are also the same.
It is important to note that this information does not imply anything about the energy, speed, or angular momentum of the electron and photon. The question only focuses on the de Broglie wavelength, which directly relates to the linear momentum of the particles.