RRB ALP 2013 سوالات 4
سوال: ہوا میں آواز کی رفتار ہر ڈگری سیلسیس درجہ حرارت کی بڑھوتری کے ساتھ……… بڑھ جاتی ہے۔
اختیارات:
A) 60 m/sec.
B) 0.61 m/sec,
C) 60 ft/sec,
D) 0.61 km/sec.
Show Answer
جواب:
صحیح جواب: B
BETA
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