In Milikan's experiment, static electric charge on the oil drops has been obtained by shining X-rays. If the static electric charge on the oil drop is `-1.282 xx 10^-18` C, Calculate the number of electrons present on it.

A certain particle carries 2.5 xx 10^-16C of static electric charge. Calculate the number of electrons present in it.

A spherical Gaussian surface encloses a charge of 17.7 xx 10^-8C :- Calculate the electric flux passing though the surface.

Calculate the electric field due to a charge of -8.0 xx 10^-8 C at a distance of 5.0 cm from it

A simplified model of hydrogen atom consists of an electron revolving about a proton at a distance of 5.3 xx 10^-1 1m. The charge on a proton is +1.6 xx 10^-19 C. Calculate the intensity of the electric field due to proton at this distance.

A current of 800 mA is passed through an electric lamp for one minute. Find the number of electrons passing through it if the charge of electron is 1.6 xx 10^-19 C.

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 .

The number of electrons delivered at the cathode during electrolysis by a current of 1 ampere in 60 seconds is (charge on electron = 1.60 xx 10^(-19)C )

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.