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A vertical column of length 50 cm at 50 C balances another column of length 60 cm having same liquid at 100 C. The coefficient of absolute expansion of the liquid is
23
Oct
A vertical column of length 50 cm at 50 C balances another column of length 60 cm having same liquid at 100 C. The coefficient of absolute expansion of the liquid is A vertical column of length 50 cm at 50 C balances another column of length 60 cm having same liquid at 100 C. [...]
Assertion (A): In simple harmonic motion, the motion is to and fro and periodic. Reason (R): Velocity of the particle V = ω rootK^2 − x^2 (where x is the displacement).
23
Oct
Assertion (A): In simple harmonic motion, the motion is to and fro and periodic. Reason (R): Velocity of the particle V = ω rootK^2 − x^2 (where x is the displacement). Assertion (A): In simple harmonic motion the motion is to and fro and periodic. Reason (R): Velocity of the particle V = ω rootK^2 [...]
Density of a substance at 0 C is 10 g/cc and at 100 C, its density is 9.7 g/cc. The coefficient of linear expansion of the substance will be
23
Oct
Density of a substance at 0 C is 10 g/cc and at 100 C, its density is 9.7 g/cc. The coefficient of linear expansion of the substance will be Density of a substance at 0 C is 10 g/cc and at 100 C its density is 9.7 g/cc. The coefficient of linear expansion of the [...]
A rod of length 20 cm is made of metal A. It expands by 0.075 cm when its temperature is raised from 0 C to 100 C. Another rod of a different metal B having the same length expands by 0.045
23
Oct
A rod of length 20 cm is made of metal A. It expands by 0.075 cm when its temperature is raised from 0 C to 100 C. Another rod of a different metal B having the same length expands by 0.045 A rod of length 20 cm is made of metal A. It expands by [...]
If two balls of same metal weighing 5 g and 10 g strike with a target with the same velocity. The heat energy so developed is used for raising their temperature alone. The temperature
23
Oct
If two balls of same metal weighing 5 g and 10 g strike with a target with the same velocity. The heat energy so developed is used for raising their temperature alone. The temperature If two balls of same metal weighing 5 g and 10 g strike with a target with the same velocity. The [...]
The figure given below shows the cooling curve of pure wax material after heating. It cools from A to B and solidifies along BD. If L and C are respective values of latent heat and
23
Oct
The figure given below shows the cooling curve of pure wax material after heating. It cools from A to B and solidifies along BD. If L and C are respective values of latent heat and The figure given below shows the cooling curve of pure wax material after heating. It cools from A to B [...]
A student takes 50 g wax (specific heat = 0.6 k cal/kg-C) and heats it till it boils. The graph between temperature and time is shown below. Heat supplied to the wax per minute and
23
Oct
A student takes 50 g wax (specific heat = 0.6 k cal/kg-C) and heats it till it boils. The graph between temperature and time is shown below. Heat supplied to the wax per minute and A student takes 50 g wax (specific heat = 0.6 k cal/kg-C) and heats it till it boils. The graph [...]
Two substances A and B of equal mass m are heated at uniform rate of 6 cal/s under similar conditions. A graph between temperature and time is shown in figure. Ratio of heats absorbed
23
Oct
Two substances A and B of equal mass m are heated at uniform rate of 6 cal/s under similar conditions. A graph between temperature and time is shown in figure. Ratio of heats absorbed Two substances A and B of equal mass m are heated at uniform rate of 6 cal/s under similar conditions. A [...]
The graph shows the variation of temperature (T) of one kilogram of a material with the heat (H) supplied to it. At O, the substance is in the solid state. From the graph, we can conclude that
23
Oct
The graph shows the variation of temperature (T) of one kilogram of a material with the heat (H) supplied to it. At O, the substance is in the solid state. From the graph, we can conclude that The graph shows the variation of temperature (T) of one kilogram of a material with the heat (H) [...]
The figure shows a glass tube (linear coefficient of expansion is alpha) completely filled with a liquid of volume expansion coefficient gama. On heating, length of the liquid column does not change.
23
Oct
The figure shows a glass tube (linear coefficient of expansion is alpha) completely filled with a liquid of volume expansion coefficient gama. On heating, length of the liquid column does not change. length of the liquid column does not change. The figure shows a glass tube (linear coefficient of expansion is alpha) completely filled with [...]