Light of frequency `7.21 xx 10^14 Hz` is incident on a metal surface. Electrons with a maximum speed of `6.0 xx 10^5 m/s` are ejected from the surface. What is the threshold frequency for photoemission of electrons?

Light of frequency 7.21 x 10^(14)Hz (Hertz) is incident on a metal surface. Electrons with a maximum speed if 6.0 xx 10^5ms^(-1) (metre per second) are ejected from the surface. What is the threshold frequency fro photo emission of electrons? Given rarr h(Planck constant) = 6.63 xx 10^(-34) Js (Joule Second) m_e (mass of electron)= 9.1 xx 10^(-31) kg (kilogram)

Work function of a metl surface is 4.2 eV. The maximum wavelength which can eject electrons from this metal surface is:

The work function of caesium metal is 2.14 eV. When light of frequency 6 xx 10^14 Hz is incident on the metal surface, photomission of electrons occurs. What is the maximum speed of the emitted photoelectrons?

The work function of caesium metal is 2.14 eV. When light of frequency 6 xx 10^14 Hz is incident on the metal surface, photomission of electrons occurs. What is the maximum kinectic energy of the emitted electrons.

Define the term work function of a metal. The threshold frequency of a metal is f_0 when the light of frequency 2f_0 is incident on the metal plate, the maximum velocity of electrons emitted is v_1 , when the frequency of the incident radiation is increased to 5f_0 , the maximum velocity of electrons emitted is v_2 . Find the ratio of v_1 and v_2 .

The work function of caesium metal is 2.14 eV. When light of frequency 6 xx 10^14 Hz is incident on the metal surface, photomission of electrons occurs. What is the stopping potential.

If high waves of frequency 8.8 xx 10^(14) Hz is incident on a metal surface of thresold frequency 4 xx 10^(14) Hz, then determine the value of stopping potential (cut-off Potential) (Given h=6.6 xx 10^(-34) Js and e = 1.6 xx 10^(-19)C)