Questions in Dual Nature of Radiation and Matter

Select	Question
	Which of the following have highest specific charge
	In Millikan’s oil drop experiment, an oil drop of mass $16 \times {10^{ - 6}}kg$ is balanced by an electric field of ${10^6}V/m.$ The charge in coulomb on the drop, assuming $g = 10\,m/{s^2}$ is
	The idea of matter waves was given by
	Wave is associated with matter
	The de-Broglie wavelength associated with the particle of mass m moving with velocity v is
	A photon, an electron and a uranium nucleus all have the same wavelength. The one with the most energy
	A particle which has zero rest mass and non-zero energy and momentum must travel with a speed
	When the kinetic energy of an electron is increased, the wavelength of the associated wave will
	If the de-Broglie wavelengths for a proton and for a $\alpha - $particle are equal, then the ratio of their velocities will be
	The de-Broglie wavelength $\lambda $associated with an electron having kinetic energy E is given by the expression