In a Ruby Laser,an Electron Jumps from a Higher Energy

question 29

Multiple Choice

In a ruby laser,an electron jumps from a higher energy level to a lower one.If the energy difference between the two levels is 1.8 eV,what is the wavelength of the emitted photon? (c = 3.00 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s,1 eV = 1.60 × 10^-19 J)

• A)350 nm
• B)470 nm
• C)650 nm
• D)690 nm
• E)960 nm

Describe how cognitive restructuring aims to change maladaptive thoughts to alleviate psychological issues.

Identify how humanistic therapies differ from psychodynamic therapies in focus and methodology.

Comprehend the psychological basis and treatment methods for phobias, including systematic desensitization.

Understand the causes of earthquakes and their association with different types of faults.

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Definitions:

Central Nervous System

The part of the nervous system that includes the brain and spinal cord, responsible for processing and coordinating sensory information and responses.

Somatic Nervous System

A part of the peripheral nervous system that transmits sensory and motor signals to and from the central nervous system, controlling voluntary muscle movements.

Axons

Long, slender projections of a neuron that transmit electrical impulses away from the neuron's cell body to other neurons or to muscles or glands.

Nerves

Bundled axons that form neural “cables” connecting the central nervous system with muscles, glands, and sense organs.