List of top Physics Questions

The frequency of the periodic wave for the following figure is 


 

If the volume of nucleus having mass number 2 is V, then that for the nucleus having mass number 8 is
If a diode is forward biased, then the
The simple microscope having a lens of focal length 5 cm gives the magnification of (least distance of distinct vision \(= 25\) cm)
The process that releases neutrons from the nucleus is
The vibrations of atoms and molecules produce electromagnetic radiation in the region of
The energy dissipated per unit time by a wire of resistance \(2R\) connected to a battery of voltage \(2V\) is
Monochromatic ray of light incident on a glass prism does not produce the phenomenon of
The magnetic field at the centre of a current loop of radius \(r\) carrying a current \(I\) is
If a current of 1 A is passed through a 1 m long solenoid of 7000 turns, the magnetic field produced at the middle of the solenoid is
The a.c circuit exhibiting the phenomenon of resonance has/have the circuit element(s)
The electrostatic force between two point charges at a distance of separation \(d\) is \(F\). If one of the charge is moved away by a distance \(d/2\) then the force between them is
For a diatomic gas molecule the value of \(C_p\) in \(J mol^{-1} K^{-1}\) is \((R = 8.2 J mol^{-1} K^{-1})\)
A steel rod of length 1 m is clamped at its middle. If the fundamental frequency of vibrations is 3 kHz, then the speed of sound in steel is
The resistance of a wire of length \(l\) and cross sectional area \(A\) is \(R\). The resistance of another wire of the same material of length \(3l\) and cross sectional area \(\frac{A}{3}\) is
The CORRECT statement for a rigid body rotating about a fixed axis with angular velocity \(\omega\) is
The line that joins any planet to the sun sweeps out equal areas in equal intervals of time. This statement is
If the moment of inertia of a circular disc about its central axis is I, then that for the same disc about its diameter is
The speed of water flowing out from the small opening at a depth of \(h\) from the surface of water in a large tank is
Young's modulus and shear modulus can be defined only in
A rain drop of mass \(10g\) falls from a height of \(50m\) from rest. If the loss of energy due to air resistance is \(3J\), then the velocity of the drop on striking the ground is \((g = 10ms^{-2})\)
The area under the curve drawn between the force \(F\) and time \(t\) is
If the forces acting on two bodies of masses \(2kg\) and \(3kg\) are same, then the ratio of their respective accelerations is
A car at rest is accelerated at \(2 ms^{-2}\) for 1 minute and then retarded at \(2 ms^{-2}\) for 1 minute to attain rest. The distance travelled by the car is
If a moving body changes its position from \(x_1\) to \(x_2\) in a time interval \(\Delta t\), then \(\frac{x_2 - x_1}{\Delta t}\) is defined as