The work function for caesium atom is 1.9 eV. If the caesium element is irradiated with a wavelength 500 nm, calculate (i) the kinetic energy and (ii) the velocity of the ejected photoelectron.

Question

The work function for caesium atom is 1.9 eV. If the caesium element is irradiated with a wavelength 500 nm, calculate (i) the kinetic energy and (ii) the velocity of the ejected photoelectron., (i)9.29 ×10 –20 J and (ii) 7.265 × 10 5 ms –1, (i)6.36 ×10 –20 J and (ii) 4.516 × 10 5 ms –1, (i)9.29 ×10 –20 J and (ii) 4.516 × 10 5 ms –1, (i)8.36 ×10 –20 J and (ii) 7.265 × 10 5 ms –1

MARKS App · Accepted Answer

Correct Option is : (C) (i)9.29 ×10 –20 J and (ii) 4.516 × 10 5 ms –1

Search any question & find its solution

Looking for more such questions to practice?