Question

VIII.
Observe the following temperature time graph and answer the related questions:
У.
104
103
102"
101
Temperature (in °F)
100
99° +
98
+
0
7
a.
9 11 13 15 17 19 21 X
Time in hours)
At what time is the temperature maximum ?
What is the difference of temperatures at 7 hours and 21 hours?
What is the fall in temperature from 13 hours to 21 hours?
What is the rise in temperature from 11 hours to 13 hours ?
b.
C.
d.​

Answer 1

Answer:

a ans is 13

b ans is 0

c ans is 6

d ans is 1

Answer 2

Answer:

Maximum temperature is at 13hrs., temperature difference from 7 to 21 hours is zero, fall in temperature from 13 to 21 hours is 6°F  and 1°F rise in temperature from 11 to 13 hours.

Step-by-step explanation:

Given the graph between time on x-axis and temperature on y-axis.

Tabulating the data from the graph,

$\begin{array}{ccc}S.No&Time(hrs)&Temperature (in ~^{o} F)\\1&7&98\\2&9&100\\3&11&103\\4&13&104\\5&15&101\\6&17&100\\7&19&99\\8&21&98\end{array}$

a) From the data, 104°F is the maximum temperature, and that is at 13hrs. of time.

Therefore, temperature is maximum is at 13hrs.

b) At 7 hrs, the temperature is 98°F and and at 21 hrs, the temperature is 98°F.

The temperature raised from 7hrs to maximum at 13 hrs, and later reduced.

As the temperatures at 7 and 21 hrs are same, the difference of temperatures at 7 hrs and 21 hrs is zero.

c) At 13 hours the temperature is maximum equal to 104°F and by 21 hours it reduced to 98°F.

Therefore, the fall in temperature from 13 hours to 21 hours is

$104-98=6~^{o} F$

d) At 11 hours, the temperature is 103°F and at 13 hours, the temperature is 104°F.

Therefore, there is a 1°F rise in temperature from 11 hours to 13 hours.