[填空题]
A beam of light is emitted in a pool of z5e+ ghny bmu vh6.v(+water wc0 1a/ ck;bfzl) ;mgbn+c 1fyfrom a depth of 62.0 cm. Where must it strike the air–water interface, relative to the spot directly above it, in orde1gnm z; ;wy+ k)1/faclcf0bb cr that the light does not exit the water? cm
