JEE Mains Physics 2002-2019 Solved Video Solutions
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:
23
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 :
23
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 [...]
Four identical particles of equal masses 1kg made to move along the circumference of a circle of radius 1 m under the action of their own mutual gravitational attraction. The speed of each particle will be :
23
Sep
Four identical particles of equal masses 1kg made to move along the circumference of a circle of radius 1 m under the action of their own mutual gravitational attraction. The speed of each particle will be : The current i in the network is September 23, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions [...]
In the given figure, the energy levels of hydrogen atom have been shown along with some transitions marked A, B, C, D and E. The transitions A, B and C respectively represent
23
Sep
In the given figure, the energy levels of hydrogen atom have been shown along with some transitions marked A, B, C, D and E. The transitions A, B and C respectively represent B B and C respectively represent C D and E. The transitions A In the given figure the energy levels of hydrogen atom [...]
If Y, K and h are the values of Young’s modulus, bulk modulus and modulus of rigidity of any material respectively. Choose the correct relation for these parameters.
23
Sep
If Y, K and h are the values of Young’s modulus, bulk modulus and modulus of rigidity of any material respectively. Choose the correct relation for these parameters. bulk modulus and modulus of rigidity of any material respectively. Choose the correct relation for these parameters. If Y K and h are the values of Young's [...]