class 12 physics important chapters

25:03

2:20

28:25

16:38

5:15

3:15:06

2:53:24

47:07

4:39

1:55:30

1:23:48

30:28

30:33

11:54:59

32:17

10:02:40

5:23

1:19:24

1:39:57

3:11:01

1:08:01

3:47:42

10:56

1:59:26

3:42

1:47:55

36:14

4:54

3:43

4:57

12:33

1:06:48

51:50

20:05

11:36

11:55:01

11:43:34

36:33

4:29

2:12:00

19:43

1:12

11:37:53

1:39:15

53:37

8:19

17:19

15:11

40:13

35:15

28:24

6:52:05

12:11

18:33

23:48

15:53

3:08:45

12:30

22:50

2:42