Practice Set 1
Two isolated conducting spheres S1 and S2 of radius 3/2R and 1/3R have 12 μC and –3 μC charges, respectively, and are at a large distance from each other. They are now connected by a conducting wire. A long time after this is done the charges on S1 and S2 are respectively
18
Sep
Two isolated conducting spheres S1 and S2 of radius 3/2R and 1/3R have 12 μC and –3 μC charges, respectively, and are at a large distance from each other. They are now connected by a conducting wire. A long time after this is done the charges on S1 and S2 are respectively and are at [...]
Consider a gas of triatomic molecules. The molecules are assumed to be triangular and made of massless rigid rods whose vertices are occupied by atoms. The internal energy of a mole of the gas at temperature T is
18
Sep
Consider a gas of triatomic molecules. The molecules are assumed to be triangular and made of massless rigid rods whose vertices are occupied by atoms. The internal energy of a mole of the gas at temperature T is area A and force F are chosen as fundamental units If speed (V) then the dimension of [...]
An elliptical loop having resistance R, of semi major axis a, and semi minor axis b is placed in a magnetic field as shown in the figure. If the loop is rotated about the x-axis with angular frequency ω, the average power loss in the loop due to Joule heating is
18
Sep
An elliptical loop having resistance R, of semi major axis a, and semi minor axis b is placed in a magnetic field as shown in the figure. If the loop is rotated about the x-axis with angular frequency ω, the average power loss in the loop due to Joule heating is An elliptical loop having [...]
In a radioactive material, fraction of active material remaining after time t is 9/16. The fraction that was remaining after t/2 is
18
Sep
In a radioactive material, fraction of active material remaining after time t is 9/16. The fraction that was remaining after t/2 is fraction of active material remaining after time t is 9/16. The fraction that was remaining after t/2 is In a radioactive material September 18, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions [...]
A wire of density 9 × 10^–3 kg cm^–3 is stretched between two clamps 1 m apart. The resulting strain in the wire is 4.9 × 10^–4. The lowest frequency of the transverse vibrations in the wire is (Young’s modulus of wire Y = 9 x 10^10 Nm^–2), (to the nearest integer),…….
18
Sep
A wire of density 9 × 10^–3 kg cm^–3 is stretched between two clamps 1 m apart. The resulting strain in the wire is 4.9 × 10^–4. The lowest frequency of the transverse vibrations in the wire is (Young’s modulus of wire Y = 9 x 10^10 Nm^–2), (to the nearest integer),……. area A and [...]
A particle of mass m is moving along the x-axis with initial velocity u^i . It collides elastically with a particle of mass 10 m at rest and then moves with half its initial kinetic energy (see figure). If sin θ1 =√ n sin θ2 then value of n is.
18
Sep
A particle of mass m is moving along the x-axis with initial velocity u^i . It collides elastically with a particle of mass 10 m at rest and then moves with half its initial kinetic energy (see figure). If sin θ1 =√ n sin θ2 then value of n is. area A and force F [...]
A light ray enters a solid glass sphere of refractive index μ = √ 3 at an angle of incidence 60°. The ray is both reflected and refracted at the farther surface of the sphere. The angle (in degrees) between the reflected and refracted rays at this surface is ….
18
Sep
A light ray enters a solid glass sphere of refractive index μ = √ 3 at an angle of incidence 60°. The ray is both reflected and refracted at the farther surface of the sphere. The angle (in degrees) between the reflected and refracted rays at this surface is …. area A and force F [...]
A square shaped hole of side I = a/2 carved out at a distance d = a/2 from the centre ‘O’ of a uniform circular disk of radius a. If the distance of the centre of mass of the remaining portion from O is −ax , value of X (to the nearest integer) is ………..
18
Sep
A square shaped hole of side I = a/2 carved out at a distance d = a/2 from the centre ‘O’ of a uniform circular disk of radius a. If the distance of the centre of mass of the remaining portion from O is −ax , value of X (to the nearest integer) is ……….. [...]
An ideal cell of emf 10 V is connected in circuit shown in figure. Each resistance is 2 Ω. The potential difference (in V) across the capacitor when it is fully charged is …..
18
Sep
An ideal cell of emf 10 V is connected in circuit shown in figure. Each resistance is 2 Ω. The potential difference (in V) across the capacitor when it is fully charged is ….. An ideal cell of emf 10 V is connected in circuit shown in figure. Each resistance is 2 Ω. The potential [...]
An ideal gas in a closed container is slowly heated. As its temperature increases, which of the following statements are true?
18
Sep
An ideal gas in a closed container is slowly heated. As its temperature increases, which of the following statements are true? An ideal gas in a closed container is slowly heated. As its temperature increases which of the following statements are true? September 18, 2021 Category: JEE Mains Physics 2002-2019 Solved Video Solutions , Practice [...]