MCQ
As the mass number A increases, the binding energy per nucleon in a nucleus:
- AIncreases.
- BDecreases.
- CRemains the same.
- ✓Varies in a way that depends on the actual value of A.
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${y_1} = 8\,\cos\, \omega t;\,{y_2} = 4\,\cos \,\left( {\omega t + \frac{\pi }{2}} \right)$ ;
${y_3} = 2\cos \,\left( {\omega t + \pi } \right);\,{y_4} = \,\cos \,\left( {\omega t + \frac{{3\pi }}{2}} \right)$ ,
are superposed on each other. The resulting amplitude and phase are respectively;