2G Type 4-Numerical stopping Potential-Dual Nature of Matter and Radiation-HSC Board-Preetam Patil

#dualnatureofmatterandradiation #maharashtraboard2022 #newsyllbus2022 Welcome To Prime Physics in this lecture I am teaching you PHYSICS chapter| Dual Nature of matter and radiation | New Syllabus 2022 | Maharashtra State Board | HSC. Please find below link for notes: https://drive.google.com/file/d/1TtPJoQzLWWCP0l44jiPS1qh80087mtsQ/view?usp=sharing This is the 13th video of this chapter and we will be learning Dual Nature of matter and radiation Observations from an experiment on photoelectric effect for the stopping potential by varying the incident frequency were plotted. The slope of the linear curve was found to be approximately 4.1 x 10-15 V s. Given that the charge of an electron is 1.6 x 10-19 C, find the value of the Planck’s constant h. Photocurrent recorded in the micro ammeter in an experimental set-up of photoelectric effect vanishes when the retarding potential is more than 0.8 V if the wavelength of incident radiation is 4950Å. If the source of incident radiation is changed, the stopping potential turns out to be 1.2 V. Find the work function of the cathode material and the wavelength of the second source. Given the following data for incident wavelength and the stopping potential obtained from an experiment on photoelectric effect, estimate the value of Planck’s constant and the work function of the cathode material. What is the threshold frequency and corresponding wavelength? What is the most likely metal used for emitter? The photoelectric cut-off voltage (stopping potential) in a certain experiment is 1.5 V. What is the maximum kinetic energy of photoelectrons emitted? The photoelectric current in a photoelectric cell can be reduced to zero by a stopping potential of 1⋅8 volt. Monochromatic light of wavelength 2200 Å is incident on the cathode. Find the maximum kinetic energy of the photoelectrons in joules. [Charge on electrons = 1⋅6 x 10-19 C] The threshold frequency for a certain metal is 3.3 x 1014 Hz. If light of frequency 8.2 x 1014 Hz is incident on the metal, predict the cut-off voltage for the photoelectric emission. Ultraviolet light of wavelength 2271Å from a 100 W mercury source irradiates a photocell made of molybdenum metal. If the stopping potential is 1.3 V, estimate the work function of the metal. How would the photocell respond to a high intensity (~105 Wm-2) red light of wave length 6328Å produced by a He-Ne laser? INSTAGRAM link for All Update https://instagram.com/primeshiksha_of... https://instagram.com/primephysics7?i... https://www.instagram.com/preet_6385/... This is the lecture for Maharashtra Board Class 12th Science Students These lectures are best for your Maharashtra Board MHT-CET exam preparation. Class 12th Students Can Join Our Telegram group for Notes, Test papers, Quiz and you can solve your doubts. @Prime Physics 👉 https://t.me/joinchat/El4YgSzPOro0Bau0

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