A Laser Pulse of Duration 25 Ms Has a Total

question 63

Multiple Choice

A laser pulse of duration 25 ms has a total energy of 1.4 J.If the wavelength of this radiation is 567 nm,how many photons are emitted in one pulse? (c = 3.00 × 10⁸ m/s,h = 6.626 × 10^-34 J ∙ s)

• A)4.0 × 10¹⁸
• B)9.9 × 10¹⁹
• C)4.8 × 10¹⁹
• D)1.6 × 10¹⁷
• E)3.2 × 10¹⁷

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Definitions:

Ethics Of Care

The ethical theory that emphasizes human interaction, holding that what makes a decision ethical is how well it builds and promotes human relationships.

Caregiver

An individual who provides care and assistance to another person, often due to age, illness, or disability.

Cared-For Party

An individual or group for whom someone has a responsibility to provide care or protection.

Absolutism

A political theory granting unlimited power to the ruler, often associated with monarchies where the monarch's authority is not restricted by laws or opposition.