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By Arnav Kumar

24 February 2025

द्विवेदीयुगीन लेखक हैं: (A) रायकृष्ण दास (B) अध्यापक पूर्ण सिंह (C) चतुरसेन शास्त्री (D) उदयशंकर भट्ट

By Arnav Kumar

24 February 2025

‘पाणिनीकालीन भारतवर्ष’ नामक कृति के लेखक हैं: (A) बालकृष्ण भट्ट (B) राधाचरण गोस्वामी (C) डॉ. वासुदेवशरण अग्रवाल (D) राजा लक्ष्मण सिंह

By Arnav Kumar

24 February 2025

UP Board Class 10 Answer Key 2025 All Subject | Download UPMSP Class 10th Answer Key

By Arnav Kumar

23 February 2025

The given diagram exhibits the relationship between the wavelength of the electromagnetic waves and the energy of photon associated with them. The three points P, Q and R marked on the diagram may correspond respectively to:

By Arnav Kumar

23 February 2025

A beaker is s filled with water (refractive index 4/3 ) upto a height H. A coin is placed at its bottom. The depth of the coin, when viewed along the near normal direction, will be :

By Arnav Kumar

23 February 2025

Figure shows variation of coulomb force (F) acting between two point charges with 1/r², r being the separation between two charges (q1,q2) and (q2,q3). if q2 is positive and least in magnitude, then the magnitude of q1 and q2 and q3 are such that :

By Arnav Kumar

23 February 2025

When a p-n junction diode is forward biased :

By Arnav Kumar

23 February 2025

A source produces monochromatic light of frequency 5.0 × 10^14 Hz and the power emitted is 3.31 mW. The number of photons emitted per second by the source, on an average is :

By Arnav Kumar

23 February 2025

A circular coil of diameter 15 mm having 300 turns is placed in a magnetic field of 30 mT such that the plane of the coil is perpendicular to the direction of magnetic field. The magnetic field is reduced uniformly to zero in 20 ms and again increased uniformly to 30 mT in 40 ms. If the emfs induced in the two time intervals are e₁ and e₂ respectively, then the value of e₁/e2 is

By Arnav Kumar

23 February 2025

The resistance of a wire of length L and radius r is R. Which one of the following would provide a wire of the same material of resistance R/2 :

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Latest Posts

द्विवेदीयुगीन लेखक हैं: (A) रायकृष्ण दास (B) अध्यापक पूर्ण सिंह (C) चतुरसेन शास्त्री (D) उदयशंकर भट्ट

UP Board Class 10 Answer Key 2025 All Subject | Download UPMSP Class 10th Answer Key

The given diagram exhibits the relationship between the wavelength of the electromagnetic waves and the energy of photon associated with them. The three points P, Q and R marked on the diagram may correspond respectively to:

A beaker is s filled with water (refractive index 4/3 ) upto a height H. A coin is placed at its bottom. The depth of the coin, when viewed along the near normal direction, will be :

Figure shows variation of coulomb force (F) acting between two point charges with 1/r², r being the separation between two charges (q1,q2) and (q2,q3). if q2 is positive and least in magnitude, then the magnitude of q1 and q2 and q3 are such that :

When a p-n junction diode is forward biased :

A source produces monochromatic light of frequency 5.0 × 10^14 Hz and the power emitted is 3.31 mW. The number of photons emitted per second by the source, on an average is :

The resistance of a wire of length L and radius r is R. Which one of the following would provide a wire of the same material of resistance R/2 :

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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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