# Electron cannot exist in the nucleus it is confirmed by observing that _____ ? with Answer - Physics Mcqs | TestPrep

> Solved MCQ: Electron cannot exist in the nucleus it is confirmed by observing that _____ ? Correct Answer: D. The velocity of electron must be very high according to uncertainty principle. Verified answer explanation for FPSC, PPSC, MDCAT, NTS, and CSS competitive exam preparation.

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# Electron cannot exist in the nucleus it is confirmed by observing that _____ ?

Direct Answer & Quick Reference

The correct option is **D. The velocity of electron must be very high according to uncertainty principle**.

A. It does emit radiation

B. Its size as compare to proton and neutron is very small

C. No antiparticle of electron is present

D. The velocity of electron must be very high according to uncertainty principle **(Correct Answer)**

✨ Explain with AI

Verified Key: D. The velocity of electron must be very high according to uncertainty principle
Solved by 3,704+ students

Verified against official examination board answer keys and standard curriculum textbooks.

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