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solve question number 15

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Asked by eknathmote50 24th May 2019, 11:23 AM
Answered by Expert
Answer:
Shift due to film placed in front of A is
Y subscript A equals D over d open square brackets t subscript A open parentheses mu subscript A minus 1 close parentheses close square brackets
Y subscript A equals D over d open square brackets t subscript A mu subscript A minus t subscript A close square brackets
Similarly sift due to film placed in front of B
Y subscript B equals D over d open square brackets t subscript B open parentheses mu subscript B minus 1 close parentheses close square brackets
Y subscript B equals D over d open square brackets t subscript B mu subscript B minus t subscript B close square brackets
As given in the question
 
t subscript A mu subscript A equals t subscript B mu subscript B
Therefore we can say that
 
if
t subscript A greater than t subscript B
thenY subscript A less than Y subscript B and hence pattern shifts towards B
whereas if
 t subscript B greater than t subscript A
 
then Y subscript B less than Y subscript A and pattern shifted towards A
Answered by Expert 24th May 2019, 1:14 PM
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