(2)
小春同學(xué)發(fā)現(xiàn)手機(jī)不能“調(diào)售”但成像也基本清晰,她將手機(jī)拿到實(shí)驗(yàn)室去探究,實(shí)驗(yàn)數(shù)據(jù)如表,根據(jù)表中數(shù)據(jù),判斷手機(jī)鏡頭的焦距大約為____;
序號(hào) | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
物距/m | 10.00 | 5.00 | 2.00 | 1.00 | 0.50 | 0.10 | 0.05 |
像距/cm | 0.500 | 0.501 | 0.502 | 0.503 | 0.505 | 0.526 | 0.556 |
A . 0.005m
B . 0.05m
C . 0.5m
D . 5m