The temperatures of two bodies measured by a thermometer are $t_{1}=20^{\circ} C \pm 0.5^{\circ} C$ and $t_{2}=50^{\circ} C \pm 0.5^{\circ} C$ Calculate the temperature difference and the error theirin.
The temperatures of two bodies measured by a thermometer are $t_{1}=20^{\circ} C \pm 0.5^{\circ} C$ and $t_{2}=50^{\circ} C \pm 0.5^{\circ} C$ Calculate the temperature difference and the error theirin.
- A
$70^{\circ} C \pm 1^{\circ} C$
- B
$30^{\circ} C \pm 0^{\circ} C$
- C
$30^{\circ} C \pm 0.5^{\circ} C$
- D
$30^{\circ} C \pm 1^{\circ} C$
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