The Path Difference Between Two Waves Is 5m

question 1

Multiple Choice

The path difference between two waves is 5m. If the wavelength of the waves emitted by the two sources is 4m, what is the phase difference (in degrees) ?

• A) 90
• B) 400
• C) 1.57
• D) 7.85
• E) 15

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Definitions:

Columns

In anatomical terms, columns refer to structures shaped like pillars, often found in the spinal cord, which consist of white matter that carries nerve impulses to and from the brain.

Dorsal Root

The part of a spinal nerve that enters the dorsal side of the spinal cord, carrying sensory information from the body to the central nervous system.

Ganglion

A structure containing a number of nerve cell bodies, typically linked by synapses, and often forming a swelling on a nerve fiber.

Arachnoid Mater

A delicate, web-like layer between the dura mater and pia mater in the brain and spinal cord, part of the meninges protecting the central nervous system.