Skip to content
New summer mock series is live Attempt timed papers for SSC, banking, and engineering entrances with updated syllabi for this season. View exams

Question

What is the velocity of an electron in the third orbit of He⁺? (v₁ for H = 2.19 × 10⁶ m s⁻¹)

Options

Choose one · Correct answer highlighted

Explanation

v₃ = Z v₁ / n = 2×2.19×10⁶/3 = 1.46×10⁶ m s⁻¹.