optics class 12

1:01:27

3:23:28

3:02:27

10:04:36

29:06

2:54:35

43:46

3:22:46

1:25:02

5:31:56

7:42:42

1:04:54

2:37:39

3:44:45

1:16:55

2:43:07

1:56:02

58:07

3:24:31

54:50

1:13:30

1:21:21

58:20

2:00:59

22:11

13:18

55:00

4:22

2:38:20

1:01:41

4:06:18

10:29:29

11:41

2:29:25

46:51

2:41:31

3:15:10

2:28:57

9:24:09

8:06

2:07:43

1:41:35

49:51

2:40:31

1:09:35

1:33:31

10:58

2:02:30

4:39

25:50

1:38:45

37:54

38:44

14:49

4:14:27

43:57

1:18:43

25:16

55:03

3:40:54