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हिंदी में विज्ञान से सम्बंधित 50 प्रश्न उत्तर – Read 50 Science Questions and Answers and Technology Most Important GK for Competitive Exams Preparations.
These all Science Questions and Answers are Highly Important for Every Government Examination in the country.
So Read now this post ‘हिंदी में विज्ञान से सम्बंधित 50 प्रश्न उत्तर’ and Increase your GK Level.
प्रश्न (1) एक कोशिकीय जीवों का अध्ययन सर्वप्रथम किस वैज्ञानिक ने किया ?
उत्तर:- ल्यूवेनहॉक ने ।
प्रश्न (2) भाप अंगार गैस किसका मिश्रण होता है ?
उत्तर:- कार्बन मोनोऑक्सीड और हाईड्रोजन ।
प्रश्न (3) ट्रांसफार्मर के क्रोड के लिए सर्वोत्तम द्रव क्या है ?
उत्तर:- नर्म लोहा ।
प्रश्न (4) कूलर का अविष्कार किसने किया था ?
उत्तर:- रिचर्ड सी लरामी ।
प्रश्न (5) चीनी का जल में विलयन कौन-सा मिश्रण है ?
उत्तर:- समांग मिश्रण ।
प्रश्न (6) कोयला किस प्रकार का चट्टान है ?
उत्तर:-  परतदार चट्टान ।
प्रश्न (7) कृत्रिम उपग्रह के अंदर व्यक्ति भारहीन महसूस क्यों करता है ?
उत्तर:-  क्योंकि पृथ्वी का आकर्षण बल उस स्थान पर शून्य होता है ।
प्रश्न (8) वर्षा की बूंदों के गोलाकार होने का क्या कारण है ?
उत्तर:- पृष्ठ तनाव ।
प्रश्न (9) किसके अभाव में बर्फ पर चलना कठिन होता है ?
उत्तर:- घर्षण के ।
प्रश्न (10) न्यूनट की गति का प्रथम नियम क्या कहलाता है ?
उत्तर:- जड़त्व का नियम ।
प्रश्न (11) सबसे छोटा कोशिकीय अंग कौन-सा है ?
उत्तर:- राइबोसोम ।
प्रश्न (12) नासा का जूनो मिशन किस गृह के लिए है ?
उत्तर:-  बृहस्पति ।
प्रश्न (13) रेबीज के टीके के खोज किसने की थी ?
उत्तर:-  लुई पाश्चर ।
प्रश्न (14) विशालकाय तारों की समाप्ति किस रूप में होने का अनुमान लगाया जाता है ?
उत्तर:-  वमष्ण छिद्र के रूप में  ।
प्रश्न (15) न्यूरॉन क्या होता है ?
उत्तर:-  तांत्रिक तंत्र की आधारभूत इकाई ।


प्रश्न (16) थर्मस किस नियम पर कार्य करता है ?
उत्तर:- किरचॉफ के नियम पर ।
प्रश्न (17) सोलर कुकर में किस दर्पण का प्रयोग होता है ?
उत्तर:- अवतल दर्पण का ।
प्रश्न (18) सीट्स पत्तों पर पीले धब्बे किसकी कमी के कारण होते है ?
उत्तर:-  मैग्नीशियम  ।
प्रश्न (19) काष्ठ स्पिरिट क्या होती है ?
उत्तर:-  मैथिल अल्कोहल  ।
प्रश्न (20) फोटोग्राफिक फिल्म पर किसकी पतली परत होती है ?
उत्तर:-  सिल्वर ब्रोमाइड  ।
प्रश्न (21) वह पदार्थ जो एक ही प्रकार के परमाणुओं से बना है, क्या कहलाता है ?
उत्तर:- तत्व ।
प्रश्न (22) शरीर की सभी कार्यों का नियंत्रण कौन-सा अंग करता है ?
उत्तर:- मस्तिष्क ।
प्रश्न (23) लघु ज्वार के समय सूर्य, चन्द्रमा और पृथ्वी की क्या स्थिति होती है ?
उत्तर:- समकोणिक ।
प्रश्न (24) क्रीम सेपरेटर में दूध में से वसा को किस कारण से अलग किया जा सकता है ?
उत्तर:-  अपकेंद्री बल  ।
प्रश्न (25) सूर्य और पृथ्वी के बीच अधिकतम दूरी कब होती है ?
उत्तर:- 4 जुलाई को  ।
प्रश्न (26) कान पर ध्वनि का प्रभाव कितने समय तक रहता है ?
उत्तर:- 1/10 सेकंड  ।
प्रश्न (27) गर्भाशय के लिए वैकल्पिक शब्द क्या है ?
उत्तर:-  यूटरस  ।
प्रश्न (28) किस ग्रह का औसत घनत्व सबसे अधिक है ?
उत्तर:-  बृहस्पति ।
प्रश्न (29) आलू के किस रोग को ‘रिंग रोग’ भी कहा जाता है ?
उत्तर:-  शैथिल रोग  ।
प्रश्न (30) मनुष्य के शरीर में पसलियों के कितने जोड़े होते हैं ?
उत्तर:- 12 जोड़े  ।
प्रश्न (31) पृथ्वी के केन्द्र में कौन-सा चुम्बकीय पदार्थ है ?
उत्तर:- निकेल  ।
प्रश्न (32) भारी मशीनों में स्नेहक के रूप में किस कार्बनिक पदार्थ का उपयोग किया जाता है ?
उत्तर:- ग्रेफाइट का  ।
प्रश्न (33) पीतल का बर्तन किन अवयवों द्वारा बनता है ?
उत्तर:- कॉपर और जिंक  ।
प्रश्न (34) निर्जल कॉपर का प्रयोग किसके परीक्षण में किया जाता है ?
उत्तर:- जल ।
प्रश्न (35) बायो गैस का कितना प्रतिशत भाग मिथेन का होता है ?
उत्तर:- 65%
प्रश्न (36) चिड़िया का आकाश में उड़ना न्यूटन के गति के किस नियम से सम्बंधित है ?
उत्तर:- गति के तृतीय नियम से ।
प्रश्न (37) लोहे पर जंग लगाना किसका उदाहरण है ?
उत्तर:- ऑक्सीकरण का ।
प्रश्न (38) ऊनी कपड़ों की शुष्क धुलाई में कौन सी गैस उपयोग में लायी जाती है ?
उत्तर:- बैंजीन ।
प्रश्न (39) नाभिकीय रिएक्टर में भारी जल का उपयोग का किस रूप में किया जाता है ?
उत्तर:- न्यूट्रान मंदक के रूप में ।
प्रश्न (40) बर्फ पानी पर क्यों तैरता है ?
उत्तर:- पानी से कम घनत्व के कारण ।


प्रश्न (41) किसी परमाणु का रासायनिक व्यवहार निर्भर करता है ?
उत्तर:- न्यूक्लियस के गिर्द घूम रहे इलेक्ट्रानों की संख्या ।
प्रश्न (42) शरीर के किस अंग को रक्त बैंक कहते हैं ?
उत्तर:- प्लीहा ।
प्रश्न (43) किसके वायु प्रदुषण से “अम्ल वर्षा” होती है ?
उत्तर:- नाइट्रस आक्साइड एवं सल्फर डाई-आक्साइड ।
प्रश्न (44) हरे फलों को कृत्रिम रूप से पकाने में किस गैस का प्रयोग किया जाता है ?
उत्तर:- एसिटिलीन ।
प्रश्न (45) कार्बन का शुद्धतम रूप कौन-सा है ?
उत्तर:- हीरा ।
प्रश्न (46) न्यूटन के गति के किस नियम से बल की परिभाषा प्राप्त होती है ?
उत्तर:- गति के प्रथम नियम से ।
प्रश्न (47) वह कौन-सा अंग है जो मानव शरीर में ग्लाइकोजेन के रूप में कार्बोहाइड्रेट को जमा करता है ?
उत्तर:- यकृत ।
प्रश्न (48) मानव शरीर का कौन-सा अवयव, सबसे पहले नाभिकीय परमाणु विकिरण से प्रभावित होता है ?
उत्तर:- अस्थि-मज्जा ।
प्रश्न (49) गंधक के साथ रबड़ को गर्म करने की क्रिया को क्या कहा जाता है ?
उत्तर:- वल्कनीकरण ।
प्रश्न (50) प्राकृतिक रबड़ को मजबूत करने तथा प्रत्यास्थ बनाने के लिए उसमें क्या मिलाया जाता है ?
उत्तर:- सल्फर ।

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