Radius of second Bohr orbit of hydrogen

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Question

The radius of the first Bohr orbit of a hydrogen atom is 5.29 × 10⁻¹¹ m. What is the radius of the second Bohr orbit?

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2.116 × 10⁻¹⁰ m Correct 1.058 × 10⁻¹⁰ m 5.29 × 10⁻¹¹ m 4.232 × 10⁻¹⁰ m

r₂ = 4 × r₁ = 2.116×10⁻¹⁰ m.

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