Physics
General
Easy
Question
t is the units of emissive power in Stefan’s law ?
- W
- W
The correct answer is:
Related Questions to study
physics
A body cools in 5 minute from 
to 
. The termperature of the surroundings is 
. What is its temperature after the next 5 minute?
A body cools in 5 minute from to . The termperature of the surroundings is . What is its temperature after the next 5 minute?
physicsGeneral
physics
Two spheres of the same material have radii 1 m and 4m and temperatures 2000k and 4000k respectively. If the energy radiated by the spheres are 
respectively then find ratio of
Two spheres of the same material have radii 1 m and 4m and temperatures 2000k and 4000k respectively. If the energy radiated by the spheres are respectively then find ratio of
physicsGeneral
physics
A liquid takes 5 minute to cool from 
to 
. The temperature of the surrounding is 
. What is the time it will take to cool from 
?
A liquid takes 5 minute to cool from to . The temperature of the surrounding is . What is the time it will take to cool from ?
physicsGeneral
physics
A bubble of air 2 mm in diameter rises in a liquid of viscosity 0.075 SI units and density ,1350 kg
. The terminal velocity of the bubble is about..........,m/s
A bubble of air 2 mm in diameter rises in a liquid of viscosity 0.075 SI units and density ,1350 kg . The terminal velocity of the bubble is about..........,m/s
physicsGeneral
physics
The terminal velocity of fall of lead shots in the cylindrical vessel is influenced by the nearness of the walls of the vessel. Hence the velocity in formula is divided by a factor 
. Where r is the radius of the lead shots and the radius of the vessel. This is called
The terminal velocity of fall of lead shots in the cylindrical vessel is influenced by the nearness of the walls of the vessel. Hence the velocity in formula is divided by a factor . Where r is the radius of the lead shots and the radius of the vessel. This is called
physicsGeneral
chemistry-
Which of the following can adsorb largest volume of hydrogen gas
Which of the following can adsorb largest volume of hydrogen gas
chemistry-General
chemistry-
Hydrogen from HCl can be prepared by
Hydrogen from HCl can be prepared by
chemistry-General
chemistry-
Action of water or dilute mineral acids on metals can give
Action of water or dilute mineral acids on metals can give
chemistry-General
chemistry-
Ortho and para hydrogen differ in
Ortho and para hydrogen differ in
chemistry-General
chemistry-
Hydrogen resembles in many of its properties
Hydrogen resembles in many of its properties
chemistry-General
chemistry-
Which of the following reaction produces hydrogen
Which of the following reaction produces hydrogen
chemistry-General
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Among the following, identify the compound which cannot act as both oxidising and reducing agents
Among the following, identify the compound which cannot act as both oxidising and reducing agents
chemistry-General
chemistry-
On reaction with Mg, very dilute nitric acid produces
On reaction with Mg, very dilute nitric acid produces
chemistry-General
chemistry-
Which is distilled first
Which is distilled first
chemistry-General
chemistry-
Which pair does not show hydrogen isotopes
Which pair does not show hydrogen isotopes
chemistry-General
