In a cell of a certain length and at a pressure of 100 mmhg, gaseous acetone transmits 25.1 per cent of the incident radiation of wavelength 265 nm. assuming be

In a cell of a certain length and at a pressure of 100 mmHg, gaseous acetone transmits 25.1 per cent of the incident radiation of wavelength 265 nm. Assuming Ber's law to apply, calculate the pressure at which 98 per cent of the ncident radiation will be absorbed by acetone in the same cell at the same temperature.