List of top Physics Questions

Which of the following relation represents Ohm's law?
Focal length of the eye lens changes with the help of
The focal length of a lens depends on
The defect by which some people can not see near objects clearly but can see distant objects is called
A person is advised to use 5D lens. What is its focal length?
Direction of electric current and direction of electrons in a conductor are
Obstruction to the motion of electrons in a conductor is called
Which of the following is the equation for given circuit as per Kirchoff's loop law?
Which of the following is the equation for given circuit as per Kirchoff's loop law
Multimeter can be used to measure
A bulb is marked 60 W and 240 V. Find the resistance in the bulb.
Usage of fuse in a circuit prevents from
What is lens maker's formula?
For a convex lens magnification of virtual image is possible only when the object distance is
If a convex lens is placed in water, it's focal length
Every lens has ____ focal points.
Parallel beam of light after passing through a convex lens pass through a point called
If the focal length of a spherical mirror is 10 cm, what is the value of radius of curvature?
Which of the following is the formula for magnification in case of spherical mirror?
A potentiometer with a cell of 2.4 volts and internal resistance of 2 Ω maintains potential drop across the resistance wire AB of length 2 m and resistance 10 Ω. A standard cell that maintains a constant EMF of ‘V’ volt with an internal resistance of 0.2 gives a balance point at 1.6 M length of the wire. The value of EMF of the second (standard) cell(V) is:
Choose the incorrect statements.
If \( R \) and \( C \) denote resistance and capacitance of a material, then the dimension of \( CR \) will be
Charge on electron is
A bat emitting an ultrasonic wave of frequency \( 4.5 \times 10^4 \, \text{Hz} \) at speed of \( 6 \, \text{m/s} \) between two parallel walls. The two frequencies heard by the bat will be
The average kinetic energy of a molecule in air at room temperature of 20\(^\circ\)C
A galvanometer having a resistance of 4 \( \Omega \) is shunted by a wire of resistance 2 \( \Omega \). If the total current is 1.5 A, the current passing through the shunt is