A diffraction grating with n = 2.5E-05 lines/nm is used to separate two colors of light. The angle between their first maxima is Δθ ≡ θ1 - θ2 = 0.12 degrees, and the first light has wavelength λ1 = 530 nm. Part (a) Find θ1 using n and λ1 in radians. Part (b) Find θ2 Part (c) Find the value of the wavelength of the second color λ2 in nm.
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Optics is the study of light in the field of physics. It refers to the study and properties of light. Optical phenomena can be classified into three categories: ray optics, wave optics, and quantum optics. Geometrical optics, also known as ray optics, is an optics model that explains light propagation using rays. In an optical device, a ray is a direction along which light energy is transmitted from one point to another. Geometric optics assumes that waves (rays) move in straight lines before they reach a surface. When a ray collides with a surface, it can bounce back (reflect) or bend (refract), but it continues in a straight line. The laws of reflection and refraction are the fundamental laws of geometrical optics. Light is an electromagnetic wave with a wavelength that falls within the visible spectrum.
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A diffraction grating with n = 2.5E-05 lines/nm is used to separate two colors of light. The angle between their first maxima is Δθ ≡ θ1 - θ2 = 0.12 degrees, and the first light has wavelength λ1 = 530 nm.
Part (a) Find θ1 using n and λ1 in radians.
Part (b) Find θ2
Part (c) Find the value of the wavelength of the second color λ2 in nm.
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