Current-syllabus practice · Physics

NEET Physics Modern Physics Questions

Modern Physics practice focused on photoelectric effect, atomic models, spectra, nuclei and radioactivity.
Practice 500 verified questions →
500 original questions · explicit provenance labels
PhysicsPlate 21
NeetVellum atlas · fig. physics
21

What to master

photoelectric effect, atomic models, spectra, nuclei and radioactivity.

Original practice preview

These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.

Example 1 · difficulty 1/5

In a Geiger-Marsden type α-particle scattering experiment on a thin gold foil, it is observed that only about 1 in every 8000 α-particles is deflected through an angle greater than 90°. The most direct conclusion drawn from this rare large-angle scattering is that:

  • A. the electrons of the atom carry most of its mass
  • B. the atom as a whole is electrically neutral
  • C. nearly all the mass and the entire positive charge of the atom are concentrated in a tiny central region
  • D. α-particles are strongly attracted by the orbital electrons

Example 2 · difficulty 3/5

An α-particle with kinetic energy 5.0 MeV approaches a gold nucleus (Z = 79) head-on. Ignoring recoil, the distance of closest approach is approximately:

  • A. 2.3 × 10⁻¹⁴ m
  • B. 4.55 × 10⁻¹⁴ m
  • C. 9.1 × 10⁻¹⁴ m
  • D. 4.55 × 10⁻¹⁵ m

Example 3 · difficulty 2/5

According to the Bohr model, the radius of the first orbit of the He⁺ ion is:

  • A. 0.265 Å
  • B. 0.529 Å
  • C. 1.058 Å
  • D. 2.116 Å

The evidence-first practice loop

  1. 1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
  2. 2. Attempt closed-bookExpose the concept or execution gap before rereading.
  3. 3. Repair and returnClassify the miss and re-practice after a delay.

Canonical chapter practice

Dual Nature of Radiation and Matter →Atoms →Nuclei →

Frequently asked questions

How many Modern Physics NEET questions are available?

NeetVellum currently publishes 500 original, verified questions across the linked canonical chapters.

How should I revise Modern Physics for NEET?

Attempt questions before rereading, classify each miss, repair the specific concept, and re-practice after a delay until the error pattern disappears.

Built by NeetVellum · original practice, explicit provenance, no fabricated PYQ claims.
NEET Physics Modern Physics Questions · NeetVellum