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Hey guys!!!!can any one please help me the question NOV2008 question 27 and 28~~~thank you
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physics MCQ help!!!!!!!please!!!!!!!
- Thread starter liuweijian94
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27:
15*10^3 x 2 = 0.03 m this is the LAMBDA
v=f/lambda
3*10^8/0.03 = 1x10^10
15*10^3 x 2 = 0.03 m this is the LAMBDA
v=f/lambda
3*10^8/0.03 = 1x10^10
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frequency is inversely propotional to LAMBDA and lambda is directly propotional to 'x' that is fringe spacing.. keep this relationship into mind and see. ans is D!
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which variant?