The Spacing of Ruled Lines on a Diffraction Grating Is

question 15

Multiple Choice

The spacing of ruled lines on a diffraction grating is 1900 nm.The grating is illuminated at normal incidence with a parallel beam of white light in the 400 nm to 700 nm wavelength band.The angular width of the gap between the first order spectrum and the second order spectrum is closest to:

• A)3.3°
• B)4.3°
• C)5.3°
• D)6.3°
• E)2.3°

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Definitions:

Variable Life

A type of life insurance policy where the cash value and death benefit vary based on the investment performance of funds chosen by the policyholder.

Universal Life

It's a flexible premium, adjustable life insurance product where the excess of premium payments above the current cost of insurance is credited to the cash value of the policy.

Fixed Death Benefit

Fixed Death Benefit is a guaranteed amount paid to the beneficiaries of a life insurance policy when the insured person passes away.

Variable Life

A type of lifelong insurance policy where both the cash value and the death benefit fluctuate according to the results of investments selected by the person holding the policy.