Is last chapter of physics i.e. Communication System important for neet ? Should I read it also or left it 
Focus on the Problem. Establish a clear mental image of the problem. A. …
Describe the Physics. Refine and quantify your mental image of the problem. A. …
Plan a Solution. Turn the concepts into math. A. …
Execute the Plan. This is the easiest step – it’s just the algebra/calculus/etc. A. …
Evaluate the Answer. Be skeptical.
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