12 Superposition Tutorial

m issing . 5 15 E xplain w hy certain orders of the interference pattern of a diffraction grating are 5 14 S tate the R ayleigh criteń on for im age resolution. E xplain your sym bo©¥s c©¥early . diffraction pattern occur. W hat condition is necessary for the expression to be valid? 5 13 S tate the expression w hich gives the angles at w hich the m inim a of a singl©¡s©¥it beam of m onochrom atic light passes through a diffraction grating? 5 12 H ow do you calcu©¥ate the m axim um num ber of orders that can be observed w hen a in its derivation. 5 11 W hat is the grating form ula? D efine the sym bo©¥s used and state the assum ption used w hat conditions w ou©¥d the equation provide an accurate value of ¡¿? n the w avelength Ä , the slit separation a and the slit to screen distance D ' ? U n d e r In a Y oung ' s doub©¥s©¥it experim ent, w hat is the re©¥ation betw een the fringe separation5 10 interference pattern, but sound from tw o loudspeakers can. 5 9 E xplain w hy light from tw o m onochrom atic sources do not produce an observab©¥e observable? 5 8 W nat are the necessary conditions for two - source interference pattern to be interfenence? 5 7 W nat do you understand by the term s coherence, a n d constructive and destï uctive straight ©¥ine . ) 5 6 W ny is diffraction of ©¥ight not easily observed? (lt w as thought that light trave©¥s in a aperture is reduced or w hen it is enlarged? 5 5 W nat is diffraction? ls the enect of diffraction m ore pronounced w hen the size of the closed and w ith both ends open? both ends? W hat about that of a stationary sound w ave set up in a pipe w ith one end 5 4 W nat is the longest possib©¥e w avelength of a stationary w ave aot up In a string fixed at of a stationary w ave? H ow about their am p©¥￠tudes? 5 3 W nat is the phase difference betw een parlic©¥es located betw een tw o adjacent nodes 5 2 H ow ls a stationary w ave form ed? 5 1 W nat ls the princip©¥e of ©¥uperposition? 国 号 E e©¥f- C hock Q ue©¥t©¥ons ìé Ûý£º12 S U P E R P O S IT IO N .. - . . .. T utorial

(c) the num ber of ditftaction m axim a observed. (b) the angle to the norm al at w hich the first order m axim um is seen, (a) the grating spacing , m onochrom atic ©¥ight of w ave©¥ength 6 0 0 nm . C alculate S P 6 A diffraction grating has 4 0 0 lines per m m and is il©¥um inated norm a©¥ly by 0 ¡¤ (c) W nat can be said about the fringe separation betw een higher order fringes? Oi) the screen is m oved closer to the slits? (i) the separation of the slits is decreased? (b) W hat is the effect on the appearance of the fringes if (a) W hat is the separation of the fringes on the screen? 1 . 2 m . w here the slits separation is 0 . 40 m m and the distance of the s©¥its to the screen is R ed ©¥ight of wavelength 6 . 0 ¡¿ 1 0 4 m is incident norm ally on a Y oung ' s doub©¥e - s lit, S P 5 of the w aves? the detector detected zero intensity w ere ©¥ocated 1 . 5 cm apart. W hat is the frequency m icrow ave d