By the name you can come to know LinearLayout adds view linearly either vertical or horizontal by the orientation set by you. It will add views one after another which will depend on the requirement of the design. And RelativeLayout adds view related with each other,there is no need to declare orientation in RelativeLayout.
As for example you want to add two TextViews one under another so you will add first TextView and refer the second TextView with the first TextView by adding android:layout_below="first textview's id" in the XML file. This way you can deal with RelativeLayout.
