Practice Question and Answer
8 Q: प्रकाशकीय तन्तु किस सिद्धान्त पर कार्य करते है ?
2114 25e589516c731373e79bc76ed
5e589516c731373e79bc76ed- 1पूर्ण आन्तरिक परावर्तनtrue
- 2व्यतिकरणfalse
- 3प्रकीर्णनfalse
- 4विवर्तनfalse
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Answer : 1. "पूर्ण आन्तरिक परावर्तन "
Q: Cactus Spines are Modified 2114 05b5cc6b9e4d2b4197774d6ee
5b5cc6b9e4d2b4197774d6ee- 1Stemsfalse
- 2Branchesfalse
- 3Leavestrue
- 4Rootsfalse
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Answer : 3. "Leaves"
Explanation :
Answer: C) Leaves Explanation: Cactus spines are also known as modified bud scales, which are also called modified leaves. Cactus spines occur in clusters in the axil of leaves.
Q: A Bus travels first half distance between two places with a speed of 40 kmph and the rest half distance with a speed of 60 kmph. The average speed of the Bus is ? 2114 05b5cc764e4d2b4197774fda3
5b5cc764e4d2b4197774fda3- 148 kmphtrue
- 250 kmphfalse
- 346 kmphfalse
- 442 kmphfalse
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Answer : 1. "48 kmph"
Explanation :
Answer: A) 48 kmph Explanation: we know that speed = distance traveled/time takenlet the total distance traveled by the car is 2x km.then time taken by it to cover first half is x/60 hour.and for second half is x/40 hour.Then average speed= total distance travelled / total time taken. i.e. 2xx60+x40 => 2x5x120 = 48 kmph.
Q: Which is the first country in the world to use drones for national mail service? 2113 05b5cc777e4d2b419777500e8
5b5cc777e4d2b419777500e8- 1Russiafalse
- 2Francetrue
- 3Swedenfalse
- 4Chinafalse
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Answer : 2. "France"
Explanation :
Answer: B) France Explanation: France became the first country in the world to use drones for national mail service.
Q: एक कक्षा में लड़के और लड़कियों के बीच का अनुपात क्रमशः 6: 5 है। यदि 8 और लड़के क्लास में शामिल होते हैं और दो लड़कियां क्लास छोड़ती हैं तो संबंधित अनुपात 11: 7 हो जाता है। अब कक्षा में लड़कों की संख्या कितनी है?
2113 05da0593031905d2853364f7b
5da0593031905d2853364f7b- 128false
- 238false
- 344true
- 436false
- 5इनमे से कोई नहींfalse
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Answer : 3. "44"
Q: In India national, National Income is calculated by the method which is known as 2113 05b5cc7cee4d2b4197775113b
5b5cc7cee4d2b4197775113b- 1the combined methodtrue
- 2the income methodfalse
- 3the product methodfalse
- 4the expenditure methodfalse
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Answer : 1. "the combined method"
Explanation :
Answer: A) the combined method Explanation: In India, National Income is calculated by the combined method. It combines two methods i.e product or output method and the income method. This is done to overcome the problem of deficiency of statistics. The product method endeavours to find out the net contribution to national income of all producing units. The income method adds up income and payments accruing of factors of production. This method is used in the tertiary sector like government services banking etc and also in the commoity sector if output data is not available.
Q: Karthik could cover a distance of 200 km in 22 days while resting for 2 hrs. per day. In how many days (approx) he will cover a distance of 250 km while resting for 2 hrs. per day and moving with 2/3rd of the previous speed ? 2113 05b5cc6cee4d2b4197774e203
5b5cc6cee4d2b4197774e203- 141.25 daystrue
- 237.5 daysfalse
- 339.75 daysfalse
- 440 daysfalse
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Answer : 1. "41.25 days"
Explanation :
Answer: A) 41.25 days Explanation: Given Karthik can cover the distance of 200 kms resting 2 hrs per day in 22 days. Let the initial speed be '1' Hence, Time = 22(24hrs - 2) Noe new speed = 2/3 Let the number of days he take be 'D' Therefore, 2224-2x3200=D24-2x2250 D = 11 x 3 x 5/4 = 41.25 days. = 41 1/4 days.
Q: निम्नलिखित में से कौन सा शिलालेख 'सुदर्शन झील' नामक झील की मरम्मत का उल्लेख करता है?
2113 06572ec39a1070fbf9bedd89b
6572ec39a1070fbf9bedd89b- 1खारवेला का हाथीगुम्फा शिलालेखfalse
- 2समुद्रगुप्त की इलाहबाद प्रशस्तिfalse
- 3पुलकेशिन का ऐहोल शिलालेखfalse
- 4रूद्रदामन का जूनागढ़ शिलालेखtrue
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Answer : 4. "रूद्रदामन का जूनागढ़ शिलालेख"
Explanation :
1. पहली आठ पंक्तियाँ "सुदर्शन झील" नामक जलाशय के जीर्णोद्धार कार्य का एक ऐतिहासिक रिकॉर्ड प्रस्तुत करती हैं, जिसे 4 वीं शताब्दी ईसा पूर्व में महान मौर्य शासक चंद्रगुप्त मौर्य ने बनाया था।
2. भारत में शक शासक का सबसे बड़ा नाम उनके सिक्कों से जाना जाता है, लेकिन इससे भी अधिक उनके जूनागढ़ शिलालेख में सेका वर्ष 72 में अर्थात् 150 ई।

