विज्ञान GK (Science GK)-021

विज्ञान GK (Science GK)-021

1. सोडियम को मिट्टी के तेल में डुबा कर रखा जाता है क्योंकि
उत्तर : सोडियम आॅक्सीजन के संपर्क में जलते है
2. विद्युत बल्ब मेंफिलामेन्ट टंगस्टन का बना होता है क्योंकि 
उत्तर : इसका ग्लनांक बहुत उच्च होता है
3. पानी में डुबी हुई लकड़ी टेढ़ी दिखाई देती है 
उत्तर : प्रकाश के अवपर्तन के कारण
4. सूर्य के डूबते ही पूरा अंधेरा क्यों नहीं हो जाता है 
उत्तर : प्रकाश के प्रकीर्णन के कारण
5. रेगिस्तान में मरीचिका बनने का कारण है 
उत्तर : प्रकाश का पूर्ण आंतरिक परावर्तन
6. हीरे के चमकने का कारण होता है
 उत्तर : प्रकाश का पूर्ण आंतरिक परावर्तन

Maya Angelou

Maya Angelou

Maya Angelou (real name: Marguerite Annie Johnson) was born on April 4, 1928, in St Louis, Missouri. She was an African-American dancer, singer, actress, author and poet. During her life, she actively worked on autobiographies and several books on essays and poetry. She was seen in many plays, movies, and television shows spanning more than 50 years. Angelou is best known for her series of seven autobiographies, which focus on her childhood and early adult experiences.

Childhood

Maya Angelou was born to father Bailey Johnson, a doorman and navy dietitian and mother Vivian Johnson, a nurse and a card dealer. When she was four, her parents separated and kids stayed with mother. At the age of eight, her mother’s boyfriend sexually abused and raped her (for which he was jailed only for a day, but later was murdered). This incident muted her for about 5 years. It was during this period when Maya Angelou found her deep interest in books, literature and her ability to listen and observe the world around her.