A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation The term “laser” refers to “light amplification by stimulated emission of radiation”. The first laser was built in 1960 by Theodore H. Maiman at Hughes Research Laboratory.
Q2. Which of the following venue hosted its first ever test match on 9th November, 2016 which was played between India and England?
निम्नलिखित में से किस मैदान ने पहली बार 9 नवंबर, 2016 को भारत बनाम इंग्लैंड मैच का आयोजन किया था?
(a) JSCA International Stadium Complex, Ranchi/ जे.एस.सी.ए अंतर्राष्ट्रीय स्टेडियम, रांची
(b) Saurashtra Cricket Association Stadium, Rajkot/ सौराष्ट्र क्रिकेट एसोसिएशन स्टेडियम, राजकोट
(c) Himachal Pradesh Cricket Association Stadium, Dharamshala/ हिमांचल प्रदेश क्रिकेट एसोसिएशन स्टेडियम, धर्मशाला
(d) Holkar Cricket Stadium, Indore/ होल्कर क्रिकेट स्टेडियम, इंदौर
The 2015 Cricket World Cup was the 11th cricket world cup, jointly hosted by Australia and New Zealand between 14 February and 29 March 2015. Australia defeated New Zealand by 7 wickets to win their fifth ICC World Cup.
Q6. Rukmini Devi Arundale was a reputed dancer and choreographer in which form of dancing?
रुक्मिणी देवी अरुंदेल नृत्य के किस रूप में एक प्रतिष्ठित नृतक और कोरियोग्राफर थीं?
Rukmini Devi Arundale was an Indian theosophist, dancer and choreographer of the Indian classical dance form ofBharatnatyam. She is considered the most important revivalist in the Indian classical dance form of Bharatanatyam from its original ‘sadhir’ style, prevalent amongst the temple dancers, devadasis. She also worked for the re-establishment of traditional Indian arts and crafts.
Wilhelm Roentgen, a German professor of physics, was the first person to discover electromagnetic radiation in a wavelength range commonly known as X-rays today. Although, many people had observed the effects of X-ray beams before, but Roentgen was the first one to study them systematically.
Q8. How many players are there in a water polo team?
जल चौगान (पोलो) की एक टीम में कितने खिलाडी होते हैं?
Water polo is a competitive team sport played in the water between two teams. The game consists of four quarters, in which the two teams attempt to score goals and throw the ball into their opponent’s goal. The team with the most goals at the end of the game wins the match. Each team made up of six field players and one goalkeeper.
Q9. ‘Lavani’ is a dance form of which state in India?
“लावणी” लोकनृत्य भारत के किस राज्य से सम्बंधित है?
Lavani is a combination of traditional song and dance, of Maharashtra which is particularly performed to the beats of ‘Dholki’ a percussion instrument. This is noted for its powerful rhythm. Lavani has contributed substantially to the development of Marathi folk theatre.