Question

If the value of two temperatures are
T1 = (40.3 + 0.1)°C and T2 = (70.2 + 0.2)°C, then the
value of (2T1 + 2T2) upto proper error limit is
(1) (221.0 + 0.1)°C (2) (221.0 + 0.6)°C
(3) (221.0 - 0.2)°C (4) (221.0 + 0.3)°C​

Answer 1

2option is the answer

Explanation:

multiply bolth of them by 2then add ...

Answer 2

Value of $2(T_1+T_2)$ upto proper error limit is $( 221+0.6)^{\circ}C$ .

Given :

$T_1 = (40.3 + 0.1)^{\circ}C$ and $T_2 = (70.2 + 0.2)^{\circ}C$ .

We need to find the value of $2(T_1+T_2)$  upto proper error limit is .

So , value of $T_1+T_2$ is 40.3 + 70.2 i.e $110.5^{\circ}C$ .

Therefore , value of $2(T_1+T_2)$ is $221^{\circ}C$ .

Now , total error is :

$2( 0.1+0.2)^{\circ}C$

$0.6^{\circ}C$ .

Therefore , value of $2(T_1+T_2)$ upto proper error limit is :

$( 221+0.6)^{\circ}C$

Hence , this is the required solution .

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Errors and measurements

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