Dual Nature of ...

A proton, a deutron and anα–particle having the same momentum, enters a region of uniform electric field between the parallel plates of a capacitor. The electric field is perpendicular to the initial path of the particles. Then the ratio of deflections suffered by them is

In order to coincide the parabolas formed by singly ionized ions in one spectrograph and doubly ionized ions in the other Thomson\'s mass spectrograph, the electric fields and magnetic fields are kept in the ratios 1 : 2 and 3 : 2 respectively. Then the ratio of masses of the ions is

Let λ_α,λ_βand λ\'_α denote the wavelengths of the X-rays of the K_α, K_β and L_α, lines in the characteristic X-rays for a metal. Then

The curve drawn between velocity and frequency of photon in vacuum will be a

Which of the following figure represents the variation of particle momentum and the associated de-Broglie wavelength?

According to Einstein\'s photoelecric equation the graph between the kinetic energy of photoelectrons ejected and the frequency of incident radiation is

For the photoelectric effect, the maximum kinetic energy E_kof the emitted photoelectrons is plotted against the frequency v of the incident photons as shown in the figure. The slope of the curve gives

The stopping potential V for photoelectric emission from a metal surface is plotted along Y-axis and frequency v of incident light along X-axis. A straight line is obtained as shown. Planck\'s constant is given by

In an experiment on photoelectric effect the frequency f of the incident light is plotted against the stopping potential V₀. The work function of the photoelectric surface is given by (e is electronic charge)

The stopping potential as a function of the frequency of the incident radiation is plotted for two different photoelectric surfaces A and B. The graphs show that work function of A is