List of top Questions asked in UPCATET

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?
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?
Which of the following does not exhibit polarization?
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 –
Curie temperature is the temperature above which –
Which of the following is the largest unit of energy?
When the angle of contact between a solid and a liquid is \( 90^\circ \), then
The total energy of a rolling ring of mass \( M \), velocity \( V \), and radius \( R \) is -
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
The ratio of kinetic energy to the total energy of an electron in a Bohr orbit of the hydrogen atom 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 –
Number of significant figures in 42306, 0.0007 and \(6.5 \times 10^{-3}\) are respectively.
What is the need for laminating the core of a transformer?
What is formed when chlorine gas is passed through slaked lime?
What is the molar mass of the carbonate ion \( CO_3^{2-} \)?
Unit of surface tension is:
If \( \tan A = \frac{1}{2} \) and \( \tan B = \frac{1}{3} \), then the value of \( A + B \) will be:
If \( \sin \theta_1 + \sin \theta_2 + \sin \theta_3 = 3 \), then what is the value of \( \cos \theta_1 + \cos \theta_2 + \cos \theta_3 \)?
The mechanical advantage of a wheel and axle system is:
Double fertilization is a characteristic of
Which sport is associated with the Euro Cup?