A Ray of Light in Water (Index N₁)is Incident on Its

question 18

Multiple Choice

A ray of light in water (index n₁) is incident on its surface (with air) at the critical angle.Some oil (index n₂) is now floated on the water.The angle between the ray in the oil and the normal is:

• A)sin^-1(1.00)
• B)sin^-1(1/n₁)
• C)sin^-1(1/n₂)
• D)sin^-1(n₁/n₂)
• E)sin^-1(n₂/n₁)

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Definitions:

Quarterly

Occurring every three months or four times a year, often used in financial reporting or billing cycles.

Compounded Semi-Annually

A method where interest is calculated and added to the principal balance twice a year.

Mortgage Loan

A loan used to purchase real estate, with the property itself serving as collateral for the loan.

Monthly Payments

Regular payments made each month, typically in the context of loans or leases.