Question

Sp 4 ised class. What is the maximum current through the inductor? 8. Where should an object be placed relative to a thin lens with focal length 35 cm so that it's magnification is +4.5. What's the image position? Is it on the same side of the lens as the object? 9. A near sighted person has their far point at 4.80 meters. What is the power P (or focal length, 1/P) required to correct their near sightedness so that the far point is corrected? You can assume that the corrective lens is at the same position of the outer lens (cornea) of the eye-ignore the distance between the corrective lens and eye. Is the lens a diverging lens or converging lens? 10. A green laser pointer with wavelength 550nin (5.50 × 10-7 m) is aimed at a single slit with width 2.00x 10-6, At what angles are the first 2 positions of the dark regions of the interferencé pattern? SECTION C (40 marks). The best 4 questions out of 5 will go to your mark: 12. Randomly polarized light is directed on 3 polarized filters placed one after the other. The first filter is vertically polarized, the 2nd filter is polarized 20 degrees with respect to the vertical, and the 3rd one is polarized 20 degrees with respect to the 2nd one (ie: 10 degrees with respect to the vertical). What is the ratio of the light intensity Isimt after the 3rd polarizer to the initial light intensity, linitiol e: Calenlate I n/Iiitiol 13 The work function. фо (or lla), for cesium is 3. İ3 x 10-19 J The froiuency of a ploton hitting the cesium sainile is 6.17 × 1()11 Hz What is the maxinmm ki uergy of au elecetron cjected from the suuple due to tiie

question 9

Answer 1

d to for corne (ting the vison, ttu uma und l lhe datant ơbject ak lhe needs to ⅛ orm the mage 0 tor point oh the eye a 4.30 m 80 m 4.3 a LLー.eo] 4-9 4.90