A beam of light of wavelength `lambda` is incident on a metal having work function `phi` and placed on a metal having work function `phi` and placed in a magnetic field B. The most energetic electrons emitted perpendicular to the field are bent in circular arcs of radius R. Then

A beam of 450 nm light is incident on a metal having work function 2.0 eV and placed in a magnetic field B. The most energetic electrons emitted perpendicular to the field are bent in circular arcs of radius 20 cm. Find the value of B.

A beam of 450 nm light is incident on a metal having work function 2.0 eV and placed in a magnetic field B. The most energetic electrons emitted perpendicular to the field are bent in circular arcs of radius 20 cm. Find the value of B.

A beam of 450 nm light is incident on a metal having work function 2eV and placed in a magnetic field B. If the most energetic electrons emitted are bent into circular are of radius 0.2 m, find B.

A light beam of wavelength 500 nm is incident on a metal having work function of 1.25 eV, placed in a magnetic field of intensity B. The electrons emitted perpendicular to the magnetic field B, with maximum kinetic energy are bent into circular arc of radius 30 cm. The value of B is "______" xx 10^(-7) T. Given hc = 20 xx 10^(-26) J-m , mass of electron = 9 xx 10^(-31) kg

Radiation of wavelength 4500overset@ A is incident on a metal having work function 2.0 eV. Due to the presence of a magnetic field B, the most energetic photoelectrons emitted in a direction perpendicular to the field move along a circular path of radius 20 cm. What is the value of the magnetic field B?

Radiation of wavelength 4500 overset (@)(A) is incident on a metal having work function 2.0 eV. Due to the presence of a magnetic field B,the most energetic photoelectrons emitted in a direction perpendicular to the field move along a circular path of radius 20 cm. What is the value of the magnetic field B?

Light of wavelength lamda falls on a metal having work function hc/ lamda . Photoelectric effect will take place only if