the temperature of two bodies measured by a thermometer are t¹ =(10°±0.2) °C and t²=(30°±0.3)°c.Calculate the temperature difference and it's error
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The temperature difference is 30
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.
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