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MDCAT Chemistry QUESTION #4366
Question 1
The value of Planck's constant is:
  • $6.6262 \times 10^{-30}\ J\cdot s$
  • $6.6262 \times 10^{-32}\ J\cdot s$
  • $6.6262 \times 10^{+34}\ J\cdot s$
  • $6.6262 \times 10^{-34}\ J\cdot s$✔️
Correct Answer Explanation
Planck's constant $h = 6.626 \times 10^{-34}\ J\cdot s$. It relates the energy of a photon to its frequency: $E = h\nu$.