In a specific gravity test, the following observation were made:
Weight of dry soil : 1.04 N
Weight of bottle + soil + water : 5.38 N
Weight of bottle + water : 4.756 N
Also while obtaining the weight 5.38 N, 3 ml of air remained entrapped in the suspension, the corrected value of specific gravity is:
1
2.694
2
1.759
3
3.968
4
2.215