The de Broglie wavelength of an electron in the first Bohr orbit is:

Question

G1 Physics · Accepted Answer

Step 1: Use λ = h/p and, for non-relativistic motion, p = √(2mK). Step 2: For particles accelerated through a potential V, λ = h/√(2mqV). Step 3: Apply momentum/energy conservation if a collision is involved. Final: A: equal to the circumference of the first orbit.