List of top Physics Questions asked in Maharashtra Board Class XII Exam

Obtain an expression for magnetic induction of a toroid of \( N \) turns about an axis passing through its centre and perpendicular to its plane.
What is the average value of alternating current over a complete cycle?
Answer the following questions:
What is the value of resistance for an ideal voltmeter?
If friction is made zero for a road, can a vehicle move safely on this road?
Calculate the velocity of a particle performing S.H.M. after 1 second, if its displacement is given by \( x = 5 \sin\left(\frac{\pi t}{3}\right) \) m.
State the formula giving relation between electric field intensity and potential gradient.
An electron is accelerated through a potential difference of 100 volts. Calculate the de-Broglie wavelength in nm.
What is the value of force on a closed circuit in a magnetic field?
Soft iron is used to make the core of transformer because of its ...........
If ‘θ’ represents the angle of contact made by a liquid which completely wets the surface of the container then ..........
If the maximum kinetic energy of emitted electrons in photoelectric effect is 2eV, the stopping potential will be ............
The radius of eighth orbit of electron in H-atom will be more than that of fourth orbit by a factor of ........
The LED emits visible light when its ...........
If a circular coil of 100 turns with a cross-sectional area of 1 m² is kept with its plane perpendicular to the magnetic field of 1 T, the magnetic flux linked with the coil will be ..........
The first law of thermodynamics is consistent with the law of conservation of ...........
Y = A + B is the Boolean expression for ...........
The property of light which remains unchanged when it travels from one medium to another is ........
If ‘n’ is the number of molecules per unit volume and ‘d’ is the diameter of the molecules, the mean free path ‘\(\lambda\) of molecules is