When sitting in a room which has metallic mesh on all sides, the mobile phone signal is weak due to

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Q: 19 (SCRA/2011)
When sitting in a room which has metallic mesh on all sides, the mobile phone signal is weak due to

question_subject: 

Science

question_exam: 

SCRA

stats: 

0,13,7,1,4,2,13

keywords: 

{'electromagnetic shielding': [0, 0, 0, 1], 'electronic shielding': [0, 0, 0, 1], 'mobile phone signal': [0, 0, 0, 1], 'optical shielding': [0, 0, 0, 1], 'magnetic shielding': [0, 0, 0, 1], 'metallic mesh': [0, 0, 0, 1]}

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