phonometer meaning in Hindi

Examples

1. Stanley read many papers to the various societies, including " Clocks " ( 1876, to the Royal Meteorological Society ), " The Mechanical Conditions of Storms, Mount St . Augustin " ( 1884, to the Royal Meteorological Society ), " Improvement in Radiation Thermometers " ( 1885, to the Royal Meteorological Society ), " Three years'work with the chrono-barometer and chrono-thermometer " ( 1886, to the Royal Meteorological Society ), " The Phonometer " ( 1891, to the Royal Meteorological Society ) and " Perception of Colour " ( 1893, to the Physical Society of London ).