Recently Active Questions

Two concentric spheres are such that the outer sphere has a charge +Q and the inner is grounded.In another case the inner sphere has charge +Q and the outer is grounded.In which case will the capacitance be higher ? ...

In the previous question if the wavelength of light ray is λ in air , what is the wavelength in glass ? ...

Light ray enters into a glass slab of refractive index μ and then comes out it. If θ1 and θ2 be the initial and final angles with normal then ...

In the above question what is the net decrese in entropy of the system ? ...

Two blocks each of mass m and specific heat capacity C initially at temperatures at T1 and T2 are brought in contact.What is the final temperature of the block ? ...

Centre of mass of a solid sphere whose density varies as ρ = ρor will be ...

A planet in a distant solar system is 4 times more massive than the earth and its radius is 16 times smaller. Given that the escape velocity from the earth is 11 km s–1, the escape velocity from the surface of the planet wo ...

A spherical solid ball of volume V is made of a material of density ρ1. It is falling through a liquid of density ρ2 (ρ2 < ρ1). Assume that the liquid applies a viscous force on the ball that is proportional to the nt ...

*Image* What is the resitance between A and B if all resitances are R. ...

The output of two signals is 1 when exactly one input is 0 and the other 1..Which GATE describes this situation ? ...

A proton and an electron moving with equal momentum enter into a perpendicular magnetic field.Then, ...

Magnetic field B inside a solenoid is μoni where n is ...

A metallic rod of length L rotates about one of its ends with angular speed ω in a magnetic field B. What is the potential difference between the two ends ? ...

In a CR circuit ...

n resistors are connected in series and then in parallel. What is the ratio of power developed in the two cases ? ...

A block of mass 0.50 kg is moving with a speed of 2.00 ms–1 on a smooth surface. It strikes another mass of 1.00 kg and then they move together as a single body. The energy loss during the collision is ...

If kinetic energy of electron be Tn and radius be Rn for nth orbit due to an attractive force given by F = K/r .Then, ...

What is the gravitational potential at the centre of a solid sphere of mass M and radius a ? ...

*Image* In the above figure if σ1 and σ2 are the carge densites at 1 and 2..This is a conductor.Then, ...

In the previous question what is the charge that appears on the outside of the plate 1 ? ...

*Image* if q1 > q2 what is the charge that appears in the inner surface of plate 1 ? ...

In case of pure rolling the work done by friction force is always ...

A ring of mass m and radius r is hinged at its periphery and is hanging down.What is the frequency of small oscillations of the ring ? ...

A charged spherical shell is cut into two unequal halves, one bigger and one smaller. Which part has greater electric field at the centre ? ...

What is the average power delivered by gravity during a projectile motion ? ...

Amongst the following ions which one has the highest paramagnetism? ...

Among the following, the strongest base is ...

the geometry of Ni(CO)4 and Ni(PPh3)2Cl2 are ...

What is the value of of |log(i)| , where i is √(-1) ...

A dice is thrown twice one after the other.What is the probability that the sum of the number that appears on the top surface is greater than or equal to 10 ? ...