A metal plate of area 1 × 10-4 m2 is illuminated by a radiation of intensity 16 m W/m2. The work function of the metal is 5 eV. The energy of the incident photons is 10 eV and only 10% of it produces photoelectrons. The number of emitted photoelectrons per second and their maximum energy, respectively will be (Take, 1 eV = 1.6 × 10-19 J)

A metal plate of area 1 × 10-4 m2 is illuminated by a radiation of in

1.	A metal plate of area 1 × 10-4 m2 is illuminated by a radiation of intensity 16 m W/m2. The work function of the metal is 5 eV. The energy of the incident photons is 10 eV and only 10% of it produces photoelectrons. The number of emitted photoelectrons per second and their maximum energy, respectively will be (Take, 1 eV = 1.6 × 10-19 J)
A.	1011 and 5 eV
B.	1012 and 5 eV
C.	1010 and 5 eV
D.	1014 and 10 eV
Answer» B. 1012 and 5 eV

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