Physics-
General
Easy
Question
A cup of tea on a metal table in a room loses heat by ....
- Conduction
- Convection
- Radiation
- All
The correct answer is: All
Related Questions to study
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Thermal radiation can be detected by ...
Thermal radiation can be detected by ...
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Heat can transfer through vacuum by means of ....
Heat can transfer through vacuum by means of ....
Physics-General
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One kilo calorie = .................... Calories.
One kilo calorie = .................... Calories.
Physics-General
Physics-
If a faulty thermometer reads the melting point of ice as –10°C and it reads 60°C in place of 50°C, the temperature of boiling point of water on this scale is ...
If a faulty thermometer reads the melting point of ice as –10°C and it reads 60°C in place of 50°C, the temperature of boiling point of water on this scale is ...
Physics-General
Physics-
The upper and lower fixed points of a faulty mercury thermometer are 210°F and 34°F respectively Which would be correct?
The upper and lower fixed points of a faulty mercury thermometer are 210°F and 34°F respectively Which would be correct?
Physics-General
Physics-
Convert 127K into celsius scale.
Convert 127K into celsius scale.
Physics-General
Physics-
A difference of temperature of 45°C is equivalent to a difference of..
A difference of temperature of 45°C is equivalent to a difference of..
Physics-General
physics-
Which of the following is the incorrect graph for a sphere falling in a viscous liquid? (Given at t = 0, velocity v = 0 and displacement x = 0.)
Which of the following is the incorrect graph for a sphere falling in a viscous liquid? (Given at t = 0, velocity v = 0 and displacement x = 0.)
physics-General
physics-
A cubical block of side ‘a’ and density ‘
’ slides over a fixed inclined plane with constant velocity ‘v’. There is a thin film of viscous fluid of thickness ‘t’ between the plane and the block. Then the coefficient of viscosity of the thin film will be:
A cubical block of side ‘a’ and density ‘’ slides over a fixed inclined plane with constant velocity ‘v’. There is a thin film of viscous fluid of thickness ‘t’ between the plane and the block. Then the coefficient of viscosity of the thin film will be:
physics-General
physics-
Equal volumes of two immiscible liquids of densities r and 2r are filled in a vessel as shown in figure. Two small holes are punched at depth h/ 2 and 3h/2 from the surface of lighter liquid. If 
are the velocities of a flux at these two holes, then 
Equal volumes of two immiscible liquids of densities r and 2r are filled in a vessel as shown in figure. Two small holes are punched at depth h/ 2 and 3h/2 from the surface of lighter liquid. If are the velocities of a flux at these two holes, then
physics-General
physics-
In a cylindrical vessel containing liquid of density , there are two holes in the side walls at heights of 
respectively such that the range of efflux at the bottom of the vessel is same. The height of a hole, for which the range of efflux would be maximum, will be
In a cylindrical vessel containing liquid of density , there are two holes in the side walls at heights of respectively such that the range of efflux at the bottom of the vessel is same. The height of a hole, for which the range of efflux would be maximum, will be
physics-General
physics-
In the case of a fluid, Bernoulli's theorem expresses the application of the principle of conservation of :
In the case of a fluid, Bernoulli's theorem expresses the application of the principle of conservation of :
physics-General
physics-
Water is flowing steadily through a horizontal tube of non uniform cross-section. If the pressure of water 
at a point where cross-section is 
and velocity of flow is 2 m/s, what is pressure at a point where cross-section reduces to 
Water is flowing steadily through a horizontal tube of non uniform cross-section. If the pressure of water at a point where cross-section is and velocity of flow is 2 m/s, what is pressure at a point where cross-section reduces to
physics-General
physics-
There is a metal cube inside a block of ice which is floating on the surface of water. The ice melts completely and metal falls in the water. Water level in the container
There is a metal cube inside a block of ice which is floating on the surface of water. The ice melts completely and metal falls in the water. Water level in the container
physics-General
physics-
A body having volume V and density is attached to the bottom of a container as shown. Density of the liquid is d 
. Container has a constant upward acceleration a. Tension in the string is
A body having volume V and density is attached to the bottom of a container as shown. Density of the liquid is d . Container has a constant upward acceleration a. Tension in the string is
physics-General
