A dimensionless quantity representing the ratio of the speed of an object to the speed of sound in the surrounding medium.

ध्वनि की गति की तुलना में किसी वस्तु की गति।

English Usage: The aircraft reached a Mach number of 2 during its test flight.

Hindi Usage: परिचालन उड़ान के दौरान विमान ने 2 का मच नंबर प्राप्त किया।

An abbreviation for "Mach number," which indicates the speed of an object relative to the speed of sound

मच संख्या

English Usage: The aircraft maintained a speed of 2.5 Mach during the flight.

Hindi Usage: विमान ने उड़ान के दौरान 2.5 मच संख्या की गति बनाए रखी।