Helium-Neon Laser Light Has a Wavelength in Air of 632

question 27

Multiple Choice

Helium-neon laser light has a wavelength in air of 632.8 nm.What is the energy of a single photon in the beam? (h = 6.626 × 10−³⁴ J⋅s and c = 3.00 × 10⁸ m/s) .

• A)3.14 × 10−¹⁹ J
• B)5.40 × 10−¹⁹ J
• C)7.62 × 10−¹⁹ J
• D)1.15 × 10−¹⁸ J

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Definitions:

Heart Rate

The number of heartbeats per unit of time, usually measured in beats per minute (bpm), indicating cardiovascular health and fitness.

Brachial Plexus

A network of nerve fibers that runs from the spine through the neck, the armpit region, and into the arm, providing movement and sensation to the arm, shoulder, and hand.

Musculocutaneous

Relating to both muscle and skin, often referring to nerves or tissues connecting or affecting both muscle and skin areas.

Femoral

Relating to the femur or thigh, which is the longest and strongest bone in the body.