Thermal Properties of Matter Test

Result

Thermal Properties of Matter Test - 32

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Question 1
4 / -1

The figure shows a glass tube (linear coefficient of expansion is α ) completely filled with a liquid of volume expansion coefficient y. On heating length of the liquid column does not change. Choose the correct relation between γ and α .

A
γ = α

B
γ = 2α

C
γ = 3α

D

Solution
Question 2
4 / -1

The resistance of a resistance thermometer has values 2.71 and 3.70 ohm at 10°C and 100°C. The temperature at which the resistance is 3.26 ohm is

A
40°C

B
50°C

C
60°C

D
70°C

Solution
Question 3
4 / -1

No other thermometer is as suitable as a platinum resistance thermometer to measure temperature in the entire range of

A
0°C to 100°C

B
100°C to 1500°C

C
–50°C to + 350°C

D
–200°C to 600°C
Question 4
4 / -1

Absolute temperature can be calculated by

A
Mean square velocity

B
Motion of the molecule

C
Both (1) and (2)

D
None of the above

Solution
Question 5
4 / -1

\'Stem Correction\' in platinum resistance thermometers are eliminated by the use of

A
Cells

B
Electrodes

C
Compensating leads

D
None of the above
Question 6
4 / -1

One quality of a thermometer is that its heat capacity should be small. If P is a mercury thermometer, Q is a resistance thermometer and R thermocouple type then

A
P is best, R worst

B
R is best, P worst

C
R is best, Q worst

D
P is best, Q worst
Question 7
4 / -1

A centigrade and a Fahrenheit thermometer are dipped in boiling water. The water temperature is lowered until the Fahrenheit thermometer registers 140^o. What is the fall in temperature as registered by the Centigrade thermometer

A
30^o

B
40^o

C
60^o

D
80^o

Solution
Question 8
4 / -1

Mercury boils at 367°C. However, mercury thermometers are made such that they can measure temperature up to 500°C. This is done by

A
Maintaining vacuum above mercury column in the stem of the thermometer

B
Filling nitrogen gas at high pressure above the mercury column

C
Filling nitrogen gas at low pressure above the mercury level

D
Filling oxygen gas at high pressure above the mercury column
Question 9
4 / -1

What is rise in temperature of a collective drop when initially 1 gm and 2 gm drops travel with velocities 10 cm/sec and 15 cm/sec?

A
6.6 × 10^–3°C

B
66 × 10^–3°C

C
660 × 10^–3°C

D
6.6 °C
Question 10
4 / -1

When a bimetallic strip is heated, it

A
Does not bend at all

B
Gets twisted in the form of an helix

C
Bend in the form of an arc with the more expandable metal outside

D
Bends in the form of an arc with the more expandable metal inside

Solution