Physics-
General
Easy
Question
If 60 complete waves are produced in 4 seconds, then the frequency of the wave will be ..............
- 60 Hz
- 40 Hz
- 20 Hz
- 15 Hz
The correct answer is: 15 Hz
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Two liquids A and B are at 30°C and 20°C respectively. When they are mixed in equal masses the temperature of the mixture was found to be 26°C The ratio of their specific heats is..
Two liquids A and B are at 30°C and 20°C respectively. When they are mixed in equal masses the temperature of the mixture was found to be 26°C The ratio of their specific heats is..
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400 cal of heat is utilised to melt ice into H2O at the same temperature. The mass of ice melted is
400 cal of heat is utilised to melt ice into H2O at the same temperature. The mass of ice melted is
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The volume of iron which will have the same thermal capacity as 1200 cc of water is Specific heat of iron = 
,density of iron = 7.5 g/cm3</su
The volume of iron which will have the same thermal capacity as 1200 cc of water is Specific heat of iron = ,density of iron = 7.5 g/cm3</su
physics-General
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A block of aluminium of mass 2kg was supplied with 3600J of heat If the specific heat of aluminium is 900 
, then rise in temperature is.
A block of aluminium of mass 2kg was supplied with 3600J of heat If the specific heat of aluminium is 900 , then rise in temperature is.
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50g of a fuel produces 25K Cal of energy. Its Calorific value in 
is..
50g of a fuel produces 25K Cal of energy. Its Calorific value in is..
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Find the heat energy required to raise the temperature of 5kg of water at 80°C to 100°Cspecific heat of water is 
)
Find the heat energy required to raise the temperature of 5kg of water at 80°C to 100°Cspecific heat of water is )
Physics-General
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Two iron spheres of equal mass having temperatures 20°C and 48°C are brought into contact with each other. What is the equilibrium temperature? Assume there is no heat loss to surroundings.
Two iron spheres of equal mass having temperatures 20°C and 48°C are brought into contact with each other. What is the equilibrium temperature? Assume there is no heat loss to surroundings.
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Heat energy produced by 150g of a fuel of Calorific value 8000 Cal g–1 is..
Heat energy produced by 150g of a fuel of Calorific value 8000 Cal g–1 is..
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A cup of tea on a metal table in a room loses heat by ....
A cup of tea on a metal table in a room loses heat by ....
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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
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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 ...
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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?
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Convert 127K into celsius scale.
Convert 127K into celsius scale.
Physics-General
