A Solid State Pulsed Laser Has an Energy of 400

question 45

Multiple Choice

A solid state pulsed laser has an energy of 400 mJ per pulse.If its wavelength is 1.06 *10 ^{- 6} m,how many photons are in each pulse?

• A)2*10²⁵
• B)2 *10²¹
• C)3 *10¹⁸
• D)6 * 10³⁸
• E)2 * 10¹⁸

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Definitions:

Third Ventricle

One of the four connected fluid-filled cavities within the brain, part of the ventricular system, situated in the midline of the brain beneath the corpus callosum.

Cranial Nerves

Twelve pairs of nerves that emerge directly from the brain (not the spinal cord), responsible for conveying sensory and motor information to and from the head and neck.

Trochlear

Pertaining to the fourth cranial nerve, responsible for eye movement, particularly rotation of the eyeball.

Subarachnoid Space

The area between the arachnoid membrane and pia mater around the brain and spinal cord, filled with cerebrospinal fluid.