You Coat a Glass Lens (N = 1

question 42

Multiple Choice

You coat a glass lens (n = 1.65) with MgF₂ (n = 1.38) to reduce reflection.The minimum thickness of coating required to produce destructive interference in reflected light whose wavelength in air is 560 nm is

• A)102 nm
• B)140 nm
• C)203 nm
• D)280 nm
• E)None of these is correct.

Recognize the significance of capital in the context of opportunity costs.

Identify the types of costs associated with running a business or pursuing education.

Grasp the concept of economic profit and its importance in evaluating business performance.

Understand the cognitive stages of child development.

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Definitions:

Main Pressure

The primary pressure within a system, such as the oil pressure in an engine or the hydraulic fluid pressure in machinery, vital for proper operation.

Pressure Relief Valve

A safety device designed to open and release excess pressure from a system, preventing potential damage or failure.

Integral Retarders

Mechanical devices integrated within a vehicle's drivetrain that assist in slowing down the vehicle by using resistance forces, without using the traditional brakes.

Output Retarder

A device used in vehicles or machinery to reduce the speed or output force, often for braking or control purposes.