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  1. A difference of 1 degree in longitude at the Equator is equivalent to nearly
    1. 101 km
    2. 111 km
    3. 121 km
    4. 125 km
Correct Option: B

NA


Comments


  1. SANTOSH KUMAR

    June 21, 2018 Reply

    For a sphere of radius 'a' at latitude 'φ' and the length of a one-degree longitude (or π/180 radians) arc is (π/180)*a*cosφ

    At equator, φ = 0. Hence, cosφ = 1


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