2025 source guide · Physics

NEET 2025 Physics Modern Physics Questions

Use this page to connect the official 2025 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 1/5

Which statement correctly identifies the roles of the two electrodes in a photoelectric tube?

A. The collector is illuminated and the emitter only measures voltage
B. Both electrodes must be illuminated so that equal electron streams are produced
C. The emitter attracts electrons from the collector when light is switched on
D. The photosensitive emitter releases electrons, and the collector receives some or all of them

Example 2 · difficulty 2/5

In a photoelectric experiment, what does the measured photocurrent directly represent?

A. The rate at which electric charge carried by collected photoelectrons passes through the circuit
B. The maximum kinetic energy possessed by each emitted electron
C. The energy delivered by the incident light per unit area
D. The work function of the photosensitive surface

Example 3 · difficulty 2/5

Light of frequency above threshold illuminates a metal. The collector is kept sufficiently positive to produce saturation current. If only the light intensity is increased, what occurs?

A. The saturation current decreases because each photon becomes less energetic
B. The saturation current increases because more photoelectrons are emitted per unit time
C. The saturation current is unchanged because the frequency is fixed
D. The current becomes zero because the threshold frequency increases

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 2025 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 2025 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.