 
			 
			MCQOPTIONS
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				| 1. | The surface temperature oscillates about the mean temperature level in accordance with the relation | 
| A. | α <sub>S,T</sub> – α <sub>S,A</sub> = 2 sin (2 π n T) | 
| B. | α <sub>S,T</sub> – α <sub>S,A</sub> = 5 sin (2 π n T) | 
| C. | α <sub>S,T</sub> – α <sub>S,A</sub> = sin (2 π n T) | 
| D. | α <sub>S,T</sub> – α <sub>S,A</sub> = 3 sin (2 π n T) | 
| Answer» D. ‚âà√≠¬¨¬± <sub>S,T</sub> ‚Äö√Ñ√∂‚àö√ë‚àö¬® ‚âà√≠¬¨¬± <sub>S,A</sub> = 3 sin (2 ‚âà√¨‚àö√ë n T) | |