Multiple choice general knowledge science & technology

What is the value of Planck's Constant?

  1. 6.626*10^(-34) J.s

  2. 6.626*10^(-34) J/s

  3. 6.626*10^(-36) J.s

  4. 6.626*10^(-36) J/s
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A Correct answer
Explanation

Planck's constant (h) is 6.626 × 10^-34 joule-seconds, a fundamental constant in quantum mechanics that relates the energy of a photon to its frequency. The unit must be J·s (energy × time), not J/s (energy divided by time).

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