Question

The photoelectric threshold wavelength of silver is 3250 × 10^–10 m. The velocity of the electron ejected from a silver surface by ultraviolet light of wavelength 2536 × 10^–10 m is
(Given h = 4.14 × 10^–15 eVs and c = 3 × 10⁸ ms^–1)

• A. ≃ 6 × 10⁵ ms^–1
• B. ≃ 0.6 × 10⁶ ms^–1
• C. ≃ 61 × 10³ ms^–1
• D. ≃ 0.3 × 10⁶ ms^–1

Answer 1

The Correct Option is A, B

The correct options are (A): ≃ 6 × 10⁵ ms^–1 and (B): ≃ 0.6 × 10⁶ ms^–1.