List of top Questions asked in Uttar Pradesh Combined Agriculture and Technology Entrance Test

For which of the following is magnetic susceptibility negative?
A long wire carrying a steady current is bent into a circular loop of one turn. The magnetic field at the centre of the loop is \( B \). It is then bent into a circular coil of \( n \) turns. The magnetic field at the centre of this coil of \( n \) turns will be
Why can't the DC ammeter measure an alternating current?
The electrical resistance of the depletion layer is large because
A potentiometer is considered a versatile and accurate device to make an electrical measurement of EMF. Why?
At a distance \( r \), two equal charges are kept and they exert a force \( F \) on each other. What is the force acting on each charge, if the distance between them is doubled and charges are halved?
For a hollow spherical shell, potential \( V \) changes with respect to distance \( r \) from the centre. Which graph from the following represents this?
What does an electric dipole experience when it is kept in a non-uniform electric field?
The image formed by the convex mirror is \( \frac{1}{n} \) times the object and has a focal length \( f \). What is the distance of the object from the mirror?
Which of the following does not exhibit polarization?
A spring has a spring constant \( k \). When the spring is stretched through 1 cm, the potential energy is \( U \). What will be the potential energy if it is stretched by 4 cm?
What will be the flux coming out of any surface of a cube, if a charge \( Q\,\mu\text{C} \) is placed at the centre of the cube?
Efficiency of a Carnot heat engine working between the temperatures \(27^\circ \text{C}\) and \(227^\circ \text{C}\) is –
Which of the following is the largest unit of energy?
Curie temperature is the temperature above which –
What is the time taken by a particle executing SHM with a time period \( T \) sec from a positive extreme position to half of the amplitude?
Choose the correct statement
The total energy of a rolling ring of mass \( M \), velocity \( V \), and radius \( R \) is -
When the angle of contact between a solid and a liquid is \( 90^\circ \), then
What happens to the weight of the body if the weight becomes \( \frac{1}{16} \) at a certain height? Also, consider the radius of the Earth to be \( R \).
A body of mass \( m \) moving with a constant velocity \( v \) hits another body of the same mass moving with the same velocity \( v \) but in the opposite direction and sticks to it. The velocity of the compound body after the collision is
Which is a constant for a freely falling object?
The frame of reference attached to a satellite of the earth is
Plane angle and solid angle have –
The ratio of kinetic energy to the total energy of an electron in a Bohr orbit of the hydrogen atom is –