Practice Set 1
The work done by a gas molecule in an isolated system is given by, W = ab^2e^-x^2/akT , where x is the displacement, k is the Boltzmann constant and T is the temperature, α and β are constants. Then the dimension of β will be :
23
Sep
The work done by a gas molecule in an isolated system is given by, W = ab^2e^-x^2/akT , where x is the displacement, k is the Boltzmann constant and T is the temperature, α and β are constants. Then the dimension of β will be : k is the Boltzmann constant and T is the [...]
The coefficient of static friction between a wooden block of mass 0.5 kg and a vertical rough wall is 0.2. The magnitude of horizontal force that should be applied on the block to keep it adhere to the wall will be ….N [g = 10 ms^–2]
23
Sep
The coefficient of static friction between a wooden block of mass 0.5 kg and a vertical rough wall is 0.2. The magnitude of horizontal force that should be applied on the block to keep it adhere to the wall will be ….N [g = 10 ms^–2] The current i in the network is September 23, [...]
Consider two satellites S1 and S2 with periods of revolution 1 hr. and 8 hr. respectively revolving around a planet in circular orbits. The ratio of angular velocity of satellite S1 to the angular velocity of satellites S2 is :
23
Sep
Consider two satellites S1 and S2 with periods of revolution 1 hr. and 8 hr. respectively revolving around a planet in circular orbits. The ratio of angular velocity of satellite S1 to the angular velocity of satellites S2 is : The current i in the network is September 23, 2021 Category: JEE Mains Physics 2002-2019 [...]
A cube of side ‘a’ has point charges +Q located at each of its vertices except at the origin where the charge is –Q. The electric field at the centre of cube is :
23
Sep
A cube of side ‘a’ has point charges +Q located at each of its vertices except at the origin where the charge is –Q. The electric field at the centre of cube is : A cube of side 'a' has point charges +Q located at each of its vertices except at the origin where the [...]
A cell E1 of emf 6V and internal resistance 2Ω is connected with another cell E2 of emf 4V and internal resistance 8Ω (as shown in the figure). The potential difference across points X and Y is :
23
Sep
A cell E1 of emf 6V and internal resistance 2Ω is connected with another cell E2 of emf 4V and internal resistance 8Ω (as shown in the figure). The potential difference across points X and Y is : A cell E1 of emf 6V and internal resistance 2Ω is connected with another cell E2 of [...]
Each side of a box made of metal sheet in cubic shape is ‘a’ at room temperature ‘T’, the coefficient of linear expansion of the metal sheet is ‘α’. The metal sheet is heated uniformly, by a small temperature ΔT. Calculate the increase in the volume of the metal box.
23
Sep
Each side of a box made of metal sheet in cubic shape is ‘a’ at room temperature ‘T’, the coefficient of linear expansion of the metal sheet is ‘α’. The metal sheet is heated uniformly, by a small temperature ΔT. Calculate the increase in the volume of the metal box. by a small temperature ΔT. [...]
Match list I with list II. Choose the correct answer from the options given below:
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Sep
Match list I with list II. Choose the correct answer from the options given below: Match list I with list II. Choose the correct answer from the options given below: September 23, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 ,
If an emitter current is changed by 4 mA, the collector current changes by 3.5 mA. The value of b will be :
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Sep
If an emitter current is changed by 4 mA, the collector current changes by 3.5 mA. The value of b will be : If an emitter current is changed by 4 mA the collector current changes by 3.5 mA. The value of b will be : September 23, 2021 Category: JEE Mains Physics 2002-2019 Solved [...]
If the velocity-time graph has the shape AMB, what would be the shape of the corresponding acceleration-time graph ?
23
Sep
If the velocity-time graph has the shape AMB, what would be the shape of the corresponding acceleration-time graph ? If the velocity-time graph has the shape AMB what would be the shape of the corresponding acceleration-time graph ? September 23, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice Set 1 ,
Two equal capacitors are first connected in series and then in parallel. The ratio of the equivalent capacities in the two cases will be:
23
Sep
Two equal capacitors are first connected in series and then in parallel. The ratio of the equivalent capacities in the two cases will be: Two equal capacitors are first connected in series and then in parallel. The ratio of the equivalent capacities in the two cases will be: September 23, 2021 Category: JEE Mains Physics [...]