List of top Questions asked in Guru Gobind Singh Indraprastha University Common Entrance Test

The chemical potential energy in gasoline is converted to kinetic energy in cars. If a car accelerates from zero to 60 km/h, compared to the energy necessary to increase the velocity of the car from 30 to 60 km/h, the energy necessary to increase the velocity of the car from 30 to 60 km/h is:
Which of the following gives the percent change to the Young's modulus for a substance, when its cross-sectional area is increased by a factor of 3?
Different objects at different distances are seen by the eye. The parameter that remains constant is
If a guitar string is 0.5 m long, what is the wavelength of its third harmonic?
The resistors in the circuits below each represent a light bulb. If all three circuits use the same size battery, which circuit will produce the most light?
The resistors in the circuits
Two singly ionised isotopes, X and Y of the same element move at the same speed perpendicular to a uniform magnetic field. Isotope X follows a path of radius 3.43 cm while isotope Y moves along a path 3.35 cm in radius. What is the ratio of the two isotope masses, \( m_Y / m_X \)?
When a piece of metal is illuminated by a monochromatic light of wavelength $\lambda$, then stopping potential is $3V_s$. When the same surface is illuminated by light of wavelength $2\lambda$, then stopping potential becomes $V_s$. The value of threshold wavelength for photoelectric emission will be:
A ball rolls up a slope. At the end of three seconds its velocity is 20 cm/s, at the end of eight seconds its velocity is 0. What is the average acceleration from the third to the eighth second?
A child swings a ball on a string in a circular motion. The ball moves in a plane vertical to the ground. If the sun is directly overhead how does the shadow move?
As given in the figure a series circuit connected across a 200 V, 60 Hz line consists of a capacitor of capacitive reactance 30 \( \Omega \), a non-inductive resistor 44 \( \Omega \), a coil of inductive reactance 90 \( \Omega \), and another resistance of 36 \( \Omega \). The power dissipated in the circuit is
series circuit connected across a 200 V,
In a car race, car A takes a time less than car B at the finish and passes the finishing point with speed \( v \) more than that of the car B. Assuming that both the cars start from rest and travel with constant accelerations \( a_1 \) and \( a_2 \) respectively. So, the value of \( v \) will be
The period of oscillation of a simple pendulum of length \( l \) suspended from the roof of a vehicle which moves down without friction on an inclined plane of inclination \( \theta \), is given by
Twenty-seven identical liquid drops, each charge to a potential of 4 V combine to form a big drop. The potential of the big drop is
When you flip a switch to turn on a light, the delay before the light turns on is determined by
An open organ pipe has a fundamental frequency of 300 Hz. The first overtone of a closed organ pipe has the same frequency as the first overtone of organ pipe. How long is each pipe?
It takes 16 min to boil some water in an electric kettle. Due to some defect, it becomes necessary to remove 10% turns of heating coil of the kettle. After repairs, how much time will it take to boil the same mass of water?
The magnetic moment of atomic neon (in units of Bohr's magnetron) is
Use the diagram below to answer the following questions. 40 spheres of equal mass make two rings of 20 spheres each. The ring on the right has a radius twice as large as the ring on the left.
If the position of the spheres approximates two uniformly dense rings, which of the following is the concerning a mass placed at position D?
40 spheres of equal mass make two rings of 20 spheres
A light meter measures the intensity \( I \) of the light falling on it. Theory suggests that this varies as the inverse square of the distance \( d \). Which graph of the results supports this theory?
light meter measures the intensity I of the light
A proton and an electron are placed in a uniform electric field. Which of the following is correct?
Kepler's third law states that the square of period of revolution (T) of a planet around the sun, is proportional to third power of average distance, r between the sun and the planet i.e. $T^2 = Kr^3$.
Here, K is constant.
If masses of the sun and the planet are M and m respectively, then as per Newton's law of gravitation, force of attraction between them is $F = \frac{GMm}{r^2}$, where G is gravitational constant.
The relation between G and K is described as
Two spherical conductors A and B of radii 1mm and 2mm are separated by a distance of 5 cm and are uniformly charged. If the spheres are connected by a conducting wire, then at equilibrium condition, the ratio of the magnitude of the electric fields at the surface of spheres A and B is
A ball is thrown from the ground to clear a wall 3 m high at a distance of 6 m and falls 18 m away from the wall, the angle of projection of ball is
A gas undergoes a process in which its pressure p and volume V are related as \( V p^n = \text{constant} \). The bulk modulus of the gas in this pressure is