In the following questions, Statement of assertion (A) is followed by a statement of reason (R). 1. If both assertion and reason are true and the reason is the correct explanation of the assertion, then mark. 2. If both assertion and reason are true but the reason is not the correct explanation of the assertion, then mark. 3. If assertion is true statement but reason is false, then mark. 4. If both assertion and reason are false statements then mark.
Assertion: Inhabitants close to very busy airports are likely to experience health hazards. Reason: Sound level of jet aeroplanes usually exceeds 160 dB.A) 1
B) 2
C) 3
D) 3
Correct Answer: A
Solution :
Noise level up to 64 dB (decibel) is tolerated. Prolonged exposure to noise level to 80 dB or more leads to loss of hearing ability fatigue, nervousness, fever, hypert gastric disorder, increase in cholesterol and dilation of pupil of the eye. As the aeroplans have the noise upto 150-160 dB. inhabitants in the vicinity of busy airports likely to experience above health Maximum noise level is recorded in r i.e., 180 dB.
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