Light

Q: In Michelson's interferometer apparatus, the number of mirrors and number of glass plates used repectively are :

(a) :  2,3
(b) :  3,2
(c) :  3,3
(d) :  2,2
(e) :  None of the Above
Answer:  2,2
Explanation:  

Q: In Michelson's Interferometer, the compensating plate is used to :

(a) :  Increase the path in one arm
(b) :  Change the amplitude
(c) :  Equalize the path in both arms
(d) :  None of these
(e) :  None of the Above
Answer:  Equalize the path in both arms
Explanation:  

Q: In YDS experiment , condition for constructive interference is that path difference is equal to :

(a) :  nʎ
(b) :  mʎ
(c) :   (n+1/2)ʎ
(d) :   (m+1/2)ʎ
(e) :  None of the Above
Answer:  
Explanation:  

Q: X-ray diffraction has been used in studying the :

(a) :  Crystal structure
(b) :  Haemoglobin
(c) :  Double helix structure of DNA
(d) :  All of these
(e) :  None of the Above
Answer:  All of these
Explanation:  

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