What is the angle of incidence on an air-to-glass boundary if the angle of refra

Question

What is the angle of incidence on an air-to-glass boundary if the angle of refraction in the glass (n = 1.52) is 25 degree? 40 degree 25 degree 43 degree 16 degree Which of the following describes what will happen to a light ray incident on an air-to-glass boundary? partial reflection, total transmission partial reflection, partial transmission total reflection total transmission A monochromatic beam of light in air has a wavelength of 589 nm in air. It passes through glass (n -1.52) and then through carbon disulfide (n = 1.63). What is its wavelength in the carbon disulfide? 895 nm 387.5 nm 361 nm 960 nm When light from air hits a smooth piece of glass with the ray perpendicular to the glass surface, the part of the light passing into the glass: will not change its intensity. will not change its speed. will not change its wavelength. will not change its frequency. How much current is flowing in one of the 2-Ohm resistors? 2.4 A 2.0 A 1.6 A 0.8 A

Explanation / Answer

Angle of refraction r = 25 o

Angle of incidence i = ?

Index of refraction of air n = 1

Index of refraction of glass n ' = 1.52

from Snell's law sin i / sin r = n ' / n

                                        = 1.5

     sin i = 1.52 sin r

            = 1.52 sin 25

           = 0.6423

        i = 39.96 o

          = 40 o

(2).option(b) is correct

Related Questions

Navigate

• Browse (All)
• Browse W
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.