2022 source guide · Physics

NEET 2022 Physics Modern Physics Questions

Use this page to connect the official 2022 paper with current Physics practice. NeetVellum does not claim a chapter appeared in that paper until the official question and final key have been mapped.

Practice 318 verified questions →Check official NTA archive ↗

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 2/5

A freshly prepared radioactive source has activity R₀. After a time interval equal to three mean lives (3τ) of the nuclide, its activity will be closest to:

A. about 37% of R₀
B. about 50% of R₀
C. about 5% of R₀
D. about 14% of R₀

Example 2 · difficulty 3/5

Given the atomic masses m(²²⁶₈₈Ra) = 226.02541 u, m(²²²₈₆Rn) = 222.01758 u and m(⁴₂He) = 4.00260 u, the Q-value of the α-decay ²²⁶₈₈Ra → ²²²₈₆Rn + ⁴₂He is nearly:

A. 4.87 MeV
B. 9.74 MeV
C. 2.44 MeV
D. 0.00523 MeV

Example 3 · difficulty 3/5

A source contains 1.0 mg of ²¹⁰₈₄Po (molar mass 210 g mol⁻¹, half-life 138 days). Its initial activity is nearly:

A. 1.7 × 10¹⁰ Bq
B. 1.7 × 10¹¹ Bq
C. 1.7 × 10¹² Bq
D. 1.7 × 10¹³ Bq

The evidence-first practice loop

1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
2. Attempt closed-bookExpose the concept or execution gap before rereading.
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

Are these official NEET 2022 Physics Modern Physics PYQs?

No. The previews are original NeetVellum practice questions. A historical item receives a PYQ label only after its official paper and authoritative final answer key are attached. Use the official archive for the source paper.

How should I use the NEET 2022 paper?

Solve the official paper under its original timing, verify against the final key, classify every miss, and then use the linked current-syllabus practice bank to repair the exposed concept.