of the ndobct we source and the thideness of the dotechir crystal (a) (1) Wrte three sdientfic observations about changing sef efficacy that can be infered from the above what (a) for a radiant sourie Whose energy is (Me 0.5) and the thickness of the crystal is equal to 1.3cm, calculate the absolute efficiency (p) of the meter if it is conducted s that the angle is (30=8) of the ndobct we source and the thideness of the dotechir crystal (a) (1) Wrte three sdientfic observations about changing sef efficacy that can be infered from the above what (a) for a radiant sourie Whose energy is (Me 0.5) and the thickness of the crystal is equal to 1.3cm, calculate the absolute efficiency (p) of the meter if it is conducted s that the angle is (30=8)