ive tried and i still dont understand how do we solve ? Numeric problems 1. Find

Question

ive tried and i still dont understand how do we solve ?

Numeric problems 1. Find the maximum wavelength of radiation from a wiens auv star with surface temperature 1700 K. What part of electromagnetic spectrum it belongs? 3.9*1(9-1.70 CO 1700 What is the diameter of first ring in airy disk of a green light with =550 nm for a camera with focal length 2. ture 50 mm, and f-number = f/11? 3://what is the angleofrefraction of a light ray nets entering the medium with n 1.5 under the 25 LaWangle? Si 30 Find the intensity of light produced by a photo flash of 10 Watts power on 5 meters? what is the energy of a green photon with -550 nm? 5, Dr. lja G. Reznikovleev Fall 2017 Manhattanville College

Explanation / Answer

Given,

T = 1700 K

We know from Weins displacement law that

lambda T = 2.898 x 10^-3 m K

lambda = 2.898 x 10^-3/T = 2.898 x 10^-3/1700

lambda = 1.7 x 10^-3 m

Hence, lambda = 1.7 x 10^-3 m = 1.7 milli-meter

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