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A capacitor P with capacitance 10 × 10⁻⁶ F is fully charged with a potential difference of 6.0 V and disconnected from the battery. The charged capacitor P is connected across another capacitor Q with capacitance 20 × 10⁻⁶ F. The charge on capacitor Q when equilibrium is established will be α × 10⁻⁵ C (assume capacitor Q does not have any charge initially), the value of α is ____.

A capacitor P with capacitance 10 × 10⁻⁶ F is fully charged with a potential difference of 6.0 V Q. […]

A conducting circular loop is rotated about its diameter at a constant angular speed of 100 rad/s in a magnetic field of 0.5 T perpendicular to the axis of rotation. When the loop is rotated by 30° from the horizontal position, the induced EMF is 15.4 mV. The radius of the loop is ____ mm. (Take π = 22/7)

Conducting circular loop rotated in magnetic field | JEE Main 2026 Q. A conducting circular loop is rotated about its

An insulated cylinder of volume 60 cm³ is filled with a gas at 27°C and 2 atmospheric pressure. Then the gas is compressed making the final volume as 20 cm³ while allowing the temperature to rise to 77°C. The final pressure is ____ atmospheric pressure.

An insulated cylinder of volume 60 cm³ is filled with a gas at 27°C and 2 atmospheric pressure Q. An

Light is incident on a metallic plate having work function 110 × 10⁻²⁰ J. If the produced photoelectrons have zero kinetic energy then the angular frequency of the incident light is ____ rad/s. (h = 6.63 × 10⁻³⁴ J·s).

Light is incident on a metallic plate having work function 110 × 10⁻²⁰ J Q. Light is incident on a

Which of the following are true for a single slit diffraction? A. Width of central maxima increases with increase in wavelength keeping slit width constant. B. Width of central maxima increases with decrease in wavelength keeping slit width constant. C. Width of central maxima increases with decrease in slit width at constant wavelength. D. Width of central maxima increases with increase in slit width at constant wavelength. E. Brightness of central maxima increases for decrease in wavelength at constant slit width.

Which of the following are true for a single slit diffraction Q. Which of the following are true for a

If ε, E and t represent the free space permittivity, electric field and time respectively, then the unit of (εE)/t will be :

If ε, E and t represent the free space permittivity electric field and time respectively Q. If $varepsilon$, $E$ and

Given below are two statements : Statement I : For a mechanical system of many particles total kinetic energy is the sum of kinetic energies of all the particles. Statement II : The total kinetic energy can be the sum of kinetic energy of the center of mass w.r.t to the origin and the kinetic energy of all the particles w.r.t. the center of mass as the reference. In the light of the above statements, choose the correct answer from the options given below :

Given below are two statements For a mechanical system of many particles total kinetic energy Q. Given below are two

Three small identical bubbles of water having same charge on each coalesce to form a bigger bubble. Then the ratio of the potentials on one initial bubble and that on the resultant bigger bubble is :

Three small identical bubbles of water having same charge on each coalesce to form a bigger bubble Q. Three small

An electric power line having total resistance of 2 Ω, delivers 1 kW of power at 250 V. The percentage efficiency of transmission line is ____.

An electric power line having total resistance of 2 Ω delivers 1 kW of power at 250 V Q. An

The smallest wavelength of Lyman series is 91 nm. The difference between the largest wavelengths of Paschen and Balmer series is nearly ____ nm.

The smallest wavelength of Lyman series is 91 nm Q. The smallest wavelength of Lyman series is $91 text{nm}$. The

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