Q11: Islamic Studies MCQ 2012

**The echo (reflected sound) will be distinctly heard only at ordinary temperatures if the distance of the reflecting surfaces from the source of sound is at least:**A) 1120 ftB) 120 ftC) 56 ftD) 100 ft Show Answer Correct Answer: C – 56 ft

**In dementia, a person:**A) Loses their weightB) Loses thinking and writingC) Loses thinking, remembering, and reasoningD) All of these Show Answer Correct Answer: C – Loses thinking, remembering, and reasoning

**The amount of data transmitted for a given amount of time is called:**A) NoiseB) BandwidthC) FrequencyD) None of these Show Answer Correct Answer: B – Bandwidth

**Which material is used for bleaching paper?**A) Caustic SodaB) SodiumC) LimeD) None of these Show Answer Correct Answer: D – None of these