The air-standard efficiency of the Otto cycle (compression ratio r, specific-heat ratio γ) isA1 − 1/r^{(γ−1)/γ}B1 − 1/r^{γ−1}C1 − 1/r^{γ}D1 − r^{γ−1} শেয়ার ভুল রিপোর্টTH-1582