AP EAPCET 2022 - 4th July Evening Shift

A toroid has a non ferromagnetic core of inner radius 24 cm and outer radius 25 cm , around which 4900 turns of a wire are wound. If the current in the wire is 12 A , the magnetic field inside the core of the toroid is

The radii of curvature of a double convex lens are 4 cm and 8 cm . If the refractive index of the material of the lens is 1.5 , the focal length of the lens is nearly.

A solid sphere of radius \(R\) has its outer half removed, so that its radius becomes \((R / 2)\). Then its moment of inertia about the diameter is

Consider the statements
In a semiconductor
(A) There are no free electrons at 0 K.
(B) There are no free electrons at any temperature.
(C) The number of free electrons increases with temperature.
(D) The number of free electrons is less tha...

A body is executing S.H.M. At a displacement \(x\) its potential energy is 9 J and at a displacement \(y\) its potential energy is 16 J . The potential energy at displacement \((x+y)\) is

In SI units, \(\mathrm{kg}-\mathrm{m}^2 \mathrm{~s}^{-2}\) is equivalent to which of the following?

Which of the following is not true about vectors \(\mathbf{A}, \mathbf{B}\) and \(\mathbf{C}\) ?

When monochromatic light of wavelength 600 nm is used in Young's double slit experiment, the fifth order bright fringe is formed at 6 mm from the central bright fringe on the screen. If the experiment is conducted with light of wavelength 4...

Speed of sound in air near room temperature is approximately

A ball of mass 300 g is dropped from a height 10 m above a sandy ground. On reaching the ground, it penetrates through a distance 1.5 m in sand and finally stops. The average resistance offered by the sand to oppose the motion is (accelerat...