The ear does not hear all frequencies with the same loudness. Therefore, certain frequencies have to have correspondingly higher or lower sound pressure levels to appear to be of the same loudness. This plot depicts this relationship. In consideration of the 10 phon curve (the bottom solid one), what is the increase in sound pressure level in dB to make a 100Hz tone as loud as a 1000Hz tone?A. 20dBB. 3dBC. 10dBD. 30dBE. 6dBIf the sound intensity of this siren is 10W/m2at a distance of 0.28m from the source, what is the sound intensity at a distance of 0.892m?A. 0.99 W/m2B. 0.49 W/m2C. 0.88 W/m2D. 1.97 W/m2