Heisenberg's uncertainty principle states that:

1. A $\Delta x \Delta p \ge \hbar/2$ Correct answer
2. B $\Delta x \Delta p = 0$
3. C $\Delta x = \Delta p$
4. D $\Delta x + \Delta p = h$

Solution

$\Delta x\,\Delta p \ge \hbar/2$.

About this question

Subject: Physics · Chapter: Dual Nature of Matter and Radiation · Topic: Heisenberg Uncertainty Principle

This question is part of PrepWiser's free JEE Main question bank. 8 more solved questions on Dual Nature of Matter and Radiation are available — start with the harder ones if your accuracy is >70%.

More Dual Nature of Matter and Radiation questions

• Easy MCQ

  The uncertainty principle implies that position and momentum:

• Easy TRUE_FALSE

  The Davisson-Germer experiment used X-rays scattered from a nickel target.

• Easy MCQ

  The Davisson-Germer experiment demonstrated:

• Medium INTEGER

  An electron is accelerated from rest through a potential difference $V$. Its de Broglie wavelength (in Å) is approximately…

• Easy MCQ

  The de Broglie wavelength of a particle of momentum $p$ is: