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Ratio of the electron's orbital speeds in two Bohr orbits of hydrogen

The same question, asked 2 times: 9 May 2023 S2*, 10 May 2024 S2. Every wording below, oldest first.

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  1. Question 1

    9 May 2023 S2

    27
    In hydrogen atom, if VnV_n and VpV_p are orbital velocities in nnth and ppth orbit respectively, then the ratio Vp:VnV_p : V_n is

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  2. Question 2

    10 May 2024 S2

    13
    The ratio of the velocity of the electron in the first Bohr orbit to that in the second Bohr orbit of hydrogen atom is

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