In an experiment on photoelectric effect, the slope of the cut-off voltage versus frequency of incident light is found to be `4.12 xx 10^-15 Vs`. Calculate the value of Planck's constant.

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 xx 10^-15 V s . Given that the charge of an electron is 1.6 xx 10^-19 C , find the value of the Planck's constant h.

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 xx 10^-15 V s . Given that the charge of an electron is 1.6 xx 10^-19 C , find the value of the Planck's constant h .

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? Incident wavelength (in overset (@)(A) ) 2536, 3650 Stopping potential (in V) 1.95 , 0.5

The threshold wavelength for silver is 3800overset@ A . Calculate maximum kinetic energy in eV of photoelectrons emitted when ultraviolet light of wavelength 2600overset@ A falls on it. Also calculate stopping potential ( 1 eV = 1.6 xx 10^-19 J , Planck's constant = h = 6.63 xx 10^-34 Js , speed of light in vacuum = 3 xx 10^8 m//s ).

In Ohm's experiments, the values of the unknown resistances were found to be 6.12 Omega , 6.09 Omega , 6.22, 6.15 Omega . Calculate the absolute error, relative error and percentage error in these measurements.

In biprism experiment ,the eyepiece is placed at a distance of 1.2 metre from the sources.The distance between the virtual sources was found to be 7.5 xx 10^-4 m.Find the wavelength of light if the eye piece is to be moved transversely through a distance of 1.888 cm for 20 fringes.

The threshold frequency for a certain metal for photoelectric effect is 1.7 xx 10^15 Hz .When light of frequency 2.2 xx 10^15 Hz is incident on the metal surface, the kinetic energy of the emitted. photoelectrons is 3.3 xx 10^-19 J .Calculate Planck's constant.

In ohm's experiment, the values of unknown resistances were found to be 6.12 Omega , 6.15 Omega , calculate the mean absolute error, relative error and percentage error in these measurements.