A spherical air bubble is embedded in a piece of glass. For a ray of light passing through the bubble, it behaves like a :

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Q: 17 (NDA-I/2011)
A spherical air bubble is embedded in a piece of glass. For a ray of light passing through the bubble, it behaves like a :
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question_subject: 

Science

question_exam: 

NDA-I

stats: 

0,10,21,14,10,6,1

keywords: 

{'spherical air bubble': [0, 0, 0, 1], 'bubble': [0, 0, 0, 1], 'lens': [0, 0, 0, 1], 'glass': [0, 0, 1, 4], 'ray': [2, 0, 5, 15], 'light': [16, 4, 34, 62]}