blai-yahbah (Dimasa)
    Contributed by: Kulendra Daulagupu on 2009-08-12
    1. Physics(Abstract Noun)
    [a] The ratio of the effective or useful output to the total input in any system.
    [b] The ratio of the energy delivered by a machine to the energy supplied for its operation. শক্তি আদিৰ ব্যৱহাৰ যোগ্য ভাগ আৰু মুঠ ভাগৰ অনুপাত৷