EAPCET - Physics मॉक टेस्ट

A nuclear fission reaction: ²³⁵U + n → ¹⁴¹Ba + ⁹²Kr + xn. Value of x is:

A point charge +Q is placed at the centre of a cube of side a. The electric flux through one face of the cube is:

In Bohr model of hydrogen atom, the energy of an electron in nth orbit is E_n = -13.6/n² eV. The energy required to excite an electron from n = 1 to n = 2 is:

In the photoelectric effect, the stopping potential depends on:

An AC generator produces a maximum emf of 300 V. The RMS voltage is:

An EMF of 10 V is induced in a coil of self-inductance 2 H. The rate of change of current in the coil is:

A circular platform of moment of inertia I₀ rotates freely with angular speed ω₀. A person of mass m, initially at the centre, walks to the edge at distance r from the axis. The final angular speed of the platform is:

Three point charges +2 muC, +3 muC and -4 muC are placed at the corners of an equilateral triangle of side 0.1*sqrt(3) m. The electric potential at the centroid of the triangle is (k = 9 x 10^9 N-m2/C2):