সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন
Which of the following is the working principle of a washing machine?
Which of the following is the working principle of a washing machine?
- ক. reverse osmosis
- খ. diffusion
- গ. centrifugation
- ঘ. dialysis
সঠিক উত্তরঃ centrifugation
এ সম্পর্কিত আরো প্রশ্ন দেখুন
- How many colors the sunlight spectrum has?
- Marble is a changed form of which of the following?
- Who discovered circulation of blood in human body?
- Which one of the following substances undergoes chemical change on heating?
- On which principle does the tape recorder function?
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Basic Information of Daily Science, Inventions and...