{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

HW 2 Sol Phys 375 F10

# HW 2 Sol Phys 375 F10 - Phys 375 HW 2 Fall 2010 Due 20...

This preview shows pages 1–2. Sign up to view the full content.

Phys 375 HW 2 Fall 2010 Due 20 September, 2010 1 . Pedrotti 3 , 3 rd edition, problem 2-7 (see Fig. 2-33). Solution: See FIGURE 2-33in the text P 3 From the geometry it is clear that h D C 4 / tan = θ , where h is the height of the slab and D is the diameter of the circle of light. From Snell’s law we know that the critical angle occurs when the angle of refraction is 2 π θ = R . Then applying Snell’s Law, 2 2 1 1 sin sin θ θ n n = we have: ( ) 55 . 1 4 / 4 / sin 2 / sin 2 2 = + = = h D D n n C air glass θ π Where I used 1 = air n . 2 . Write an expression for the E - and B -fields that constitute a plane harmonic wave traveling in the + z -direction. The wave is linearly polarized with its plane of vibration at 45 o to the yz -plane. Solution: For a plane wave traveling in the +z-direction we know the functional form of the wave must be ( ) t kz ω sin or cosine. Since the wave is traveling in free space, it must be transverse. This implies that 0 = z E . For light polarized linearly at a 45° the normalized polarization vector is ( ) y x ˆ ˆ 2 1 + .

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}