List of top Physics Questions

Resistor Color codes were developed by:
36 cells, each of emf 4V are connected in series and kept in a box. The combination shows an emf of 88V on the outside. Calculate the number of cells reversed.
If a coil carrying current is placed in a uniform magnetic field, then
A steady current flows in a metallic conductor of non-uniform cross-section. Which of the following quantities is constant along the conductor?
The property which differentiates two kinds of charges is called
Two charges $Q_1$ and $-Q_2$ are separated by a distance $r$. The charges attract each other with a force $F$. What is the new force between the charges if the distance is cut to one-fourth and the magnitude of each charge is doubled?
What is meant by mean free path?
The opposition offered by the electrolyte of the cell to the flow of current through itself is known as .
X is a substance which does not allow the flow of charges through it but permits them to exert electrostatic forces on one another through it. Identify X.
What happens when a glass rod is rubbed with silk?
Which of the following is not a gas law?
The equation $ pv = RT $ is used for ideal gases. The right equation for real gases is van der Waals equation. What is the correct formula for the van der Waals equation? Where $\frac{a}{v^2}$ is the force of cohesion and $ b $ is the coefficient related to volume of molecules.
Which of the following has a mole ratio 1:1?
What are the total degrees of freedom if the number of species are 8, total streams are 3, stream temperature 3, stream pressure 3 and heat released 1, extent of reaction 2?
If the Earth loses its gravity, then for a body
The law which states that within elastic limits strain produced is proportional to the stress producing it is known as
Hess’s law states that a chemical reaction is independent of the route by which chemical reactions take place while keeping the same
The slope of the stress-strain curve in the elastic deformation region is
A boy of mass 50kg is standing on a frictionless surface. He throws a ball of mass 2kg away from him with a speed of 10m/s. Find the final speed of the centre of mass.
Point, where the total volume of the body is assumed to be concentrated is
The displacement of the body is given to be proportional to the cube of time elapsed. The magnitude of acceleration of body is
What may the cross product of two vectors be used for?
A bus that is travelling straight makes an abrupt right turn. What will happen to those who are on board the bus?
The inherent property, with which a body resists any change in its state of motion is known as
A particle is moving with a constant speed along a straight-line path. A force is not required to