Question

The temperatures of two bodies measured by a thermometer are

T1 = (15 ± 0.5)0C and T2 = (45 ± 0.5)0C. Calculate the temperature difference

with error limit ni​

Answer 1

Explanation:

Here, t

1

=20

o

C±0.5

o

C

t

2

=50

o

C±0.5

o

C

The temperature difference between the two bodies is

t=t

2

−t

1

,

=50

o

C−20

o

C=30

o

C

The error in temperature difference is given by

Δt=(Δt

1

+Δt

2

)=(0.5

o

C+0.5

o

C)=1

o

C

∴ The temperature difference is 30

o

C±1

o

C