Physics MCQs for Class 9 with Answers
The device that is used to measure the temperature of a body called
Thermometer
Acidimeter
Barometer
Clock timer
The value of latent heat of fusion ice is:
3.36 x 10-5 Jkg-1
3.36 x 105Jkg-1
3.36 x 106Jkg-1
None of these
Absolute zero is equal to:
0°C
-273°C
0°F
All
Mercury is used as thermometric material because it has
Uniform thermal expansion
Low freezing point
Small heat capacity
All the above properties
Specific heat of water is J kg-1 K-1IS:
4200
4000
1000
2500
A large water reservoir keeps the temperature of nearby land moderate due to
Low temperature of water
Low specific heat of water
Less absorption of heat
Large specific heat of water
Which gas is used inspite of Freon gas in refrigerator?
CO2
H2
NH3
N2
The temperature if steam is
0°C
100°C
273°C
-273°C
The boiling point of mercury is:
-10 oC
150oC
375oC
457oC
Heat capacity of 5 kg water is.
2000 JK-1
2100 JK-1
21000 JK-1
210000 JK-1
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