Q: 48 (CAPF/2010)

Match List-I with List-II and select the correct answer using the code given below the lists :
List-I (Phenomenon)
A. Reverberation
B. Resonance
C. Refraction
List-II (Reason)
1. Occurs when. two waves of equal frequency superpose
2. Occurs when two waves have slightly diffe- rent frequencies superpose
3. Prolonged echo of light
4. Occurs as a ray of light enters a second medium
Code : ABC
question_subject: 
Science
question_exam: 
CAPF
stats: 
0,18,26,3,3,20,18
keywords: 
{'refraction': [0, 0, 1, 0], 'equal frequency': [0, 0, 1, 0], 'waves': [0, 0, 3, 0], 'resonance': [0, 0, 1, 1], 'reverberation': [0, 0, 0, 1], 'echo': [0, 0, 1, 2], 'light': [16, 4, 34, 62]}

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