Q261
Open questionWhat is the physical state of water at 12° Celsius?
Select an option to see the answer and solution.
Physics GK · all questionsHeat and Thermodynamics
Heat and Thermodynamics
practice.
Practice every MCQ with options. Use Show answers when you want the correct option and solution.
308
Questions
14/16
Page
Pick an option on a question to see the right answer and solution.
Q262
Open questionWhich one of the following statement with regarding to expansion of materials due to heating is not correct?
Select an option to see the answer and solution.
Q263
Open questionWhich of the following devices can be used to detect radiant heat?
Select an option to see the answer and solution.
Q264
Open questionLakes freeze in cold countries in winter, leaving the water underneath at
Select an option to see the answer and solution.
Q265
Open questionHow much mechanical work must be done to completely melt 1g of ice at 0°C?
Select an option to see the answer and solution.
Q266
Open questionWhich of the following thermodynamic process of constant volume is called?
Select an option to see the answer and solution.
Q267
Open questionThermostat is related to
Select an option to see the answer and solution.
Q268
Open questionWhat is the freezing point of water on Kelvin scale?
Select an option to see the answer and solution.
Q269
Open questionWhich electric device is not based on Joule's law of heating?
Select an option to see the answer and solution.
Q270
Open questionMatch the following.
| List-I | List-II |
| a. Zeroth Law of Thermodynamics | 1. Give us the concept of temperature |
| b. First Law of Thermodynamics | 2. Defines internal energy |
| c. Second Law of Thermodynamics | 3. Change in internal energy is zero |
| d. In a complete cycle of changes | 4. The efficiency of on engine is always less than unity |
Select an option to see the answer and solution.
Q271
Open questionRunning a fan in the summer season is given relief because-
Select an option to see the answer and solution.
Q272
Open questionHeat from the Sun reaches Earth by the process of
Select an option to see the answer and solution.
Q273
Open questionA perfect black body is one whose emissive power is
Select an option to see the answer and solution.
Q274
Open questionWhen a bottle is filled with water and it is freezing the bottle breaks down, because
Select an option to see the answer and solution.
Q275
Open questionConsider the figures of a metal ball and a metal ring given below.
The metal ball can just pass through the hole of a metal ring formed out of a strip. When the ball is heated it gets stuck. But when the metal is heated
The metal ball can just pass through the hole of a metal ring formed out of a strip. When the ball is heated it gets stuck. But when the metal is heated
Select an option to see the answer and solution.
Q276
Open questionThe boiling point of water decreases at higher altitudes is due to
Select an option to see the answer and solution.
Q277
Open questionRadiations coming from the sun are mostly in the form of
Select an option to see the answer and solution.
Q278
Open questionThe temperature of a place on one sunny day is 113 in Fahrenheit scale. The Kelvin scale reading of this temperature will be
Select an option to see the answer and solution.
Q279
Open questionWater pipes in hilly areas often burst on a cold frosty night because
Select an option to see the answer and solution.
Q280
Open questionTransfer of heat by convection can take place in
Select an option to see the answer and solution.