The Wavelength of a Ruby Laser Is 694

question 26

Multiple Choice

The wavelength of a ruby laser is 694.3 nm.What is the energy difference between the two energy states for the transition that produces this light? (c = 3.00 × 10⁸ m/s,1 eV = 1.60 × 10^-19 J,h = 6.626 × 10^-34 J ∙ s)

• A)1.54 eV
• B)1.65 eV
• C)1.79 eV
• D)1.81 eV

Understand the urgency and prioritization in addressing psychological issues.

Learn about the legal obligations of therapists towards third parties in cases of potential harm.

Understand the importance of congruence in self-concept and ideal self in therapy.

Know how to classify disorders using the DSM-IV, including understanding its axes.

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