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By Arnav Kumar

22 February 2025

When the resistance measured between pandan ends of a p-n junction diode is high, it can act as a/an :

By Arnav Kumar

22 February 2025

The energy of an electron in a hydrogen atom in ground state is -13.6 eV. Its energy in an orbit corresponding to quantum number n is -0.544 eV. The value of n is :

By Arnav Kumar

22 February 2025

UP Board Class 10 Hindi Model Paper 2025 | यूपी बोर्ड कक्षा -10 हिन्दी मॉडल पेपर 2025

By Arnav Kumar

22 February 2025

Atomic spectral emission lines of hydrogen atom are incident on a zinc surface. The lines which can emit photoelectrons from the surface are members of

By Arnav Kumar

22 February 2025

A tub is filled with a transparent liquid to a height of 30.0 cm. The apparent depth of a coin lying at the bottom of the tub is found to be 16.0 cm. The speed of light in the liquid will be :

By Arnav Kumar

22 February 2025

Which one of the following statements is correct? Electric field due to static charges is :

By Arnav Kumar

22 February 2025

A transformer is connected to a 200 V ac source. The transformer supplies 3000 V to a device. If the number of turns in the primary coil is 450, then the number of turns in its secondary coil is :

By Arnav Kumar

22 February 2025

The alternating current I in an inductor is observed to vary with time t as shown in the graph for a cycle.

By Arnav Kumar

22 February 2025

In the figure X is a coil wound over a hollow wooden pipe. A permanent magnet is pushed at a constant speed v from the right into the pipe and it comes out at the left end of the pipe :

By Arnav Kumar

22 February 2025

The magnetic field due to a small magnetic dipole of dipole moment ‘M’ at a distance ‘r’ from the centre along the axis of the dipole is given by

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Latest Posts

When the resistance measured between pandan ends of a p-n junction diode is high, it can act as a/an :

The energy of an electron in a hydrogen atom in ground state is -13.6 eV. Its energy in an orbit corresponding to quantum number n is -0.544 eV. The value of n is :

UP Board Class 10 Hindi Model Paper 2025 | यूपी बोर्ड कक्षा -10 हिन्दी मॉडल पेपर 2025

Atomic spectral emission lines of hydrogen atom are incident on a zinc surface. The lines which can emit photoelectrons from the surface are members of

A tub is filled with a transparent liquid to a height of 30.0 cm. The apparent depth of a coin lying at the bottom of the tub is found to be 16.0 cm. The speed of light in the liquid will be :

Which one of the following statements is correct? Electric field due to static charges is :

A transformer is connected to a 200 V ac source. The transformer supplies 3000 V to a device. If the number of turns in the primary coil is 450, then the number of turns in its secondary coil is :

The alternating current I in an inductor is observed to vary with time t as shown in the graph for a cycle.

In the figure X is a coil wound over a hollow wooden pipe. A permanent magnet is pushed at a constant speed v from the right into the pipe and it comes out at the left end of the pipe :

The magnetic field due to a small magnetic dipole of dipole moment ‘M’ at a distance ‘r’ from the centre along the axis of the dipole is given by

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Assertion (A) : Energy is released when heavy nuclei undergo fission or light nuclei undergo fusion. Reason (R): For heavy nuclei, binding energy per nucleon increases with increasing Z while for light nuclei, it decreases with increasing Z.

Assertion (A) : Induced emf produced in a coil will be more when the magnetic flux linked with the coil is more. Reason (R): Induced emf produced is directly proportional to the magnetic flux

A good diode checked by a multimeter should indicate :

The energy of an electron in an orbit in hydrogen atom is 3-4 eV. Its angular momentum in the orbit will be :

The radius of a nucleus of mass number 125 is

Nuclides with the same number of neutrons are called :

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