The electron in the hydrogen atom jumps from excited state (n=3) to its ground state (n=1) and the photons thus emitted irradiate a photosensitive material. If the work function of the material is 5.1eV, the stopping potential is estimated to be

Monochromatic radiation emitted when electron on hydrogen atom jumps from first exited to the grounds state irradiates a photosnesitive material. The stopping potential is measured to be 3.57V. The threshold frequency of the material is :A1.6×1015HzCorrect AnswerB2.5×1015HzYour AnswerC4×1015HzD5×1015Hz

A container consists of a sample of hydrogen like ions all of which are in the same state. In this state, ionization energy of an ion is 36 of ionization energy of hydrogen atom. This sample is now allowed to reach its most stable configuration, thereby resulting in 10 distinct types of photons. The most energetic Paschen-line photons from this sample are made incident on a metal. The stopping potential of the ejected photoelectrons is observed to be  3.704 V. Find the work function of the target (in eV) to the nearest integer.

Figure shows the plot of the stopping potentialversus the frequency of the light used in anexperiment on photoelectric effect. The ratio h/e is:

From the photoelectric effect experiment, following observations are made. Identify which of these are correctA. The stopping potential depends only on the work function of the metal.B. The saturation current increases as the intensity of incident light increases.C. The maximum kinetic energy of a photo electron depends on the intensity of the incident light.D. Photoelectric effect can be explained using wave theory of light.Choose the correct answer from the options given below:B, C onlyA, C, D onlyB onlyA, B, D only

If maximum velocity with which an electron can be emitted from a photo cell is 4 × 108 cm/s, the stopping potential is (mass of electron = 9 × 10–31 kg)