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Quiz2@!$!@$@ - Name I\A an Class Date ID:A leIch Multiple...

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Unformatted text preview: Name: I ' \A an Class: Date: ID:A leIch Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. . The Doppler shift of ultrasonic waves can measure the Speed of blood in an artery. if the frequency of the stationary source is iOO kHz and the reflected sound has a Doppler shift of 200 Hz, what is the blood flow speed? (The speed of sound inside the body is l 500 m/s.) 3. 1.0 m/s There cute Two isomer skaHs‘. @ 1.5m/s 3- answer» i r . . .— .—. _ __ "' I —- e. 4.5m (1,. -(E‘iv‘ss‘... at. _) ch ch: _. Um w/s 2. A standing wave is set up in a 2.0—rn string fixed at both ends. The string vibrates in 5 distinct segments when driven by a 120—1-12 source. In how many distinct standing wave segments will the string vibrate if the tension is increased by a factor of 4? 3‘ i0 OYETiN‘H‘j "Q: l'lOHz/S Z Hz 0" 20 lhcnxtzml "Hm Tthhuh 1.», u. {melt-W 09 Li <10“le E C. , d. 30 50 C bdohncs ‘43}; g. 10 :s ho'l’ W" 'm‘t‘c 4"“ Mnll‘rflif N _ . 2. m cc \ 3 © 0 standing wave pattern occurs. or: a” “O 5 “My, 5 WM,“ 3‘. W t ,, ’0 . 3. A radio wave transmits 1.2 W/rn2 average power per unit area. What is the peak value of the associated magnetic field? (yo = 4.71: x 10-7 T'm/A and c = 3.00 x 108 m/s) E1) 1.0 x 10-7 T .— c '3- .f—l ‘* --' t. a M I ’- b. 8.4x10-3T - frugwnj. #5 Brass. 71: ., H10 T c. 1.2 T d. 30 T e. 5] T 4. How is the direction of propagation of an electromagnetic wave oriented relative to the associatedfi and ii fields? Q1) parallel to both E and ii b. perpendicular to both E and E c. parallel to E, perpendicular to § d. ” parallel to B, perpendicular to E e. Both choices a and c are valid. 5. When viewing your image in a hand—held mirror, if you move the mirror away at a speed v, the image appears to: 3. also move away at v. + ....1 V a Q move away at 2v. ' 3.9 c. d. 6. move away at vf2. 6’" at not move. 5:". +3 @6' 41"" a move away at v/ 3. Name: 8 0 0M MAW 11);A 6. A ray of light strikes a thick sheet of glass (11 = 1.5) at an angle of 25° with the normal. Find the angle of the refracted ray within the glass with respect to the normal. is. 32: “\S'wééfl-‘zmswcen . 25° ':. - u‘ I. _ I _ o .-. & I60 » 91" S-ly‘ (6') : SIM "‘ e. 12° “1 7. An oil film floats on a water surface. The indices of refraction for water and oil, respectively, are 1.333 and 1.466. If a ray of light is incident on the air—to—oil surface at an angle of 37.0° with the normal, what is the angle of the refracted ray in the water? 5 . 18.10 . _ __ u 3. 24.20 0‘". Q 9a“ —$:\‘ JmWSWQH )>?l"l-;L" C) 26.80 o"! H 1 _ _, D d. 37.00 wh‘_"'%‘ ewIfi-cv '~ SIN \CE§%SS‘IK(lH.3-Ha)\ '— .0! 8. An optical fiber is made of clear plastic with index of refraction n = 1.50. For what angles with the surface will light remain within the plastic "guide"? 0 a. <66.6° b. $<S7J° W‘S"h(9c.]: “a S'ML‘WO") :Ina c. q3<51.7° a o «48.20 9;: mews) '1 H13 6. tp<29.9° .‘M, 9?: 305L113 M3,). F—‘P 9:. cp ...
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This note was uploaded on 02/11/2012 for the course PHYS 1C 1C taught by Professor Wethien during the Spring '11 term at UCSD.

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Quiz2@!$!@$@ - Name I\A an Class Date ID:A leIch Multiple...

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