 
			 
			MCQOPTIONS
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				| 1. | The resistance\[{{R}_{t}}\] of a conductor varies with temperature t as shown in the figure. If the variation is represented by \[{{R}_{t}}={{R}_{0}}[1+\alpha t+\beta {{t}^{2}}]\], then [CPMT 1988] | 
| A. | \[\alpha \] and \[\beta \] are both negative | 
| B. | \[\alpha \] and \[\beta \] are both positive | 
| C. | 10 units | 
| D. | \[\alpha \] is negative and \[\beta \] are positive | 
| Answer» C. 10 units | |