Power, Indices and Surds Questions in Hindi for Competitive Exams. प्रतियोगी परीक्षाओं के लिए पावर, इंडेक्स और सर्ड प्रश्न। SSC CGL, CPO, CHSL, Bank, UPSSSC और अन्य सरकारी नौकरियों की परीक्षाओं के पिछले वर्ष के परीक्षा प्रश्न पत्रों से चयनित महत्वपूर्ण प्रश्न। आगामी प्रतियोगी परीक्षाओं के लिए विषयवार प्रश्न और समाधान के साथ पावर, इंडेक्स और सर्ड्स का उत्तर बहुत उपयोगी है।
Power, Indices and Surds Questions in Hindi
Finding the Largest and Smallest Values : सबसे बड़ा और सबसे छोटा
Q.1: निम्न में सबसे बड़ी संख्या कौन सी है ?
350, 440, 530 and 620
a) 350
b) 440
c) 530
d) 620
Show Answer
350 =(35)10 = (243)10
440 = (44)10=(256)10
530 = (53)10 = (125)10
620 = (62)10 = (36)10
Q.2: निम्न में सबसे बड़ी संख्या कौन सी है ?
a)
b)
c) 0.47
d)
Show Answer
![Rendered by QuickLaTeX.com (0.7)^2](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-c0eac09c72e0edd517e95369e09ac179_l3.png)
![Rendered by QuickLaTeX.com \frac 49](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-5ae575bb041462d44d29e5d38e7d9056_l3.png)
![Rendered by QuickLaTeX.com \sqrt{\frac {9}{49}} = \frac37 = 0.43](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-89503bc10d8beddb3374e9f7de84dbd0_l3.png)
![Rendered by QuickLaTeX.com (0.7)^2 = 0.49](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-61a42fcefde5a0b0764030dabd20772d_l3.png)
Q.3: निम्नलिखित को अवरोही क्रम (बड़ा से छोटा ) में व्यवस्थित करो :
a)
b)
c)
d)
Show Answer
![Rendered by QuickLaTeX.com \sqrt[3]{4} > \sqrt[4]{5} > \sqrt 2 > \sqrt[6]{3}](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-7864db7bac5c67de9384bc1f83ce0781_l3.png)
![Rendered by QuickLaTeX.com \sqrt[3]{4} = 4^\frac13 = (4^4) = (256)^\frac {1}{12}](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-6b741b1686464e4f4d71a3ee9934563b_l3.png)
![Rendered by QuickLaTeX.com \sqrt 2 = 2^\frac{1}{12} =(64)^\frac{1}{12}](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-d05cc342c498369a37103b1ed555aef4_l3.png)
![Rendered by QuickLaTeX.com \sqrt [6]3 = 3^\frac{1}{6} = (3^2)^\frac {1}{12} = (9)^\frac {1}{12}](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-3c74afdb07e314a94e9fe0ef16d6be9b_l3.png)
![Rendered by QuickLaTeX.com \sqrt[4] 5 =5^{\frac14}= (5^3)^{ \frac{1}{12}} =(125)^\frac{1}{12}](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-61996699208612b62c24b523dcf64b11_l3.png)
Q.4: संख्याओं में सबसे छोटा है : 2250, 3150, 5100, 4200
a) 2250
b) 3150
c) 5100
d) 4200
Show Answer
2250 =(25)50 =(32)50
3150 = (33)50 = (27)50
5100 = (52)50 =(25)50
4200 = (44)50 = (256)50
Q.5: कौन सा बड़ा है: or
?
a)
b)
c) Equal
d) Can not be compared
Show Answer
![Rendered by QuickLaTeX.com \sqrt3](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-ea0751b97d69ad1fd9af33b4945121e8_l3.png)
Cube of both the numbers are
![Rendered by QuickLaTeX.com (\sqrt[3]2)^3 =2 \: \text {and} \: (\sqrt3)^3 = 3 \sqrt3](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-6fb66eb3f9b0689c0c2be173fb703f06_l3.png)
Q.6: इनमें से सबसे छोटा है: is
a)
b)
c)
d)
Show Answer
![Rendered by QuickLaTeX.com \sqrt[4]5](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-6176005729c63e5360ace648e8a3c9bf_l3.png)
LCM of 2,3,4 and 6 is 12
![Rendered by QuickLaTeX.com \sqrt[6]{12}](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-66de1351cd6ad3cfcb3e09656f634799_l3.png)
![Rendered by QuickLaTeX.com \sqrt[3]4](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-2d406c544cb9e655892b46d45cb34194_l3.png)
![Rendered by QuickLaTeX.com \sqrt[4]5](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-6176005729c63e5360ace648e8a3c9bf_l3.png)
![Rendered by QuickLaTeX.com \sqrt3](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-ea0751b97d69ad1fd9af33b4945121e8_l3.png)
Q.7: यदि X =(0.25)1\2, Y = (0.4)2, Z=(0.216)1/3, tतो
a) Y>X>Z
b) X>Y>z
c) Z>X>Y
d) X>Z>Y
Show Answer
X=(0.25)1/2 =0.5
Y= (0.4)2 = 0.16
Z = (0.216) = 0.6
Simplifying when the Root Values are given
Q.8: यदि तो
का अनुमानित मान कितना है ?
a) 1
b) 0.5223
c) 6.32
d) 2.035
Show Answer
![Rendered by QuickLaTeX.com \sqrt {\frac {3}{11}} = \sqrt {\frac {3\times 11}{11 \times 11}} = \frac {1}{11} \sqrt {33} = \frac{5.745}{11} = 0.5223](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-ae7e693579de0718726da03c3328a351_l3.png)
Q.9: यदि दिया गया है, तो
का मान दशमलव के दो स्थानों तक सही है :
a) 1.59
b) 1.60
c) 2.58
d) 2.57
Show Answer
![Rendered by QuickLaTeX.com \frac {7} {(3+\sqrt2)} = \frac {7} {(3+\sqrt2)} \times \frac {3-\sqrt2}{3-\sqrt2} = \frac {21-7\sqrt2}{9-2} =3-\sqrt2 = 3-1.4142 =1.59](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-2b2c2ebd465081d9eb69ba4b910e5760_l3.png)
Q.10: मूल्यांकन करें:
a) 3.46
b) 10.38
c) 13.84
d) 24.22
Show Answer
![Rendered by QuickLaTeX.com 16\sqrt {\frac{3\times 4} {4\times4} } - 9\sqrt {\frac {4\times3}{3\times 3}}](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-aff62788561613f50b39ae1a9b3ee78d_l3.png)
=
![Rendered by QuickLaTeX.com \frac {16}{4}\sqrt{12}-\frac 93 \sqrt {12}](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-c944ff539274700274abd6e2b7950807_l3.png)
=
![Rendered by QuickLaTeX.com 4 \sqrt{12} -3\sqrt{12} = \sqrt {12} = 3.46](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-9e4a222a8121ff249a8eaee6f969ceff_l3.png)
Rationalising or Prime Factor
Q.11: निम्न में अभाज्य गुणक (प्राइम फैक्टर्स) की संख्या कितनी होगी :
6333 x 7222 x 8111
a) 1221
b) 1222
c) 1111
d) 1211
Show Answer
6333 x 7222 x 8111 = (2×3)333 x 7222 x (23)111 = 2333 x 3333 x 7222 x 2333
Total Prime Factor = 333+333+222+333= 1221
Q.12: निम्न में अभाज्य गुणक (प्राइम फैक्टर्स) कितने है ?
410 x 73 x 162 x 11 x 102
a) 34
b) 35
c) 36
d) 37
Show Answer
410 x 73 x 162 x 11 x 102
= (22)10 x 73 x (24)2 x 11 x (5×2)2
= 220 x 73 x 28 x 11 x 52 x22
=230 x 52 x 73 x 11
Total Prime Factors = 30+2+3+1 = 36
Q.13: निम्न का परिमेयकरण गुणक (rationalizing factor) क्या है ? is
a)
b) 3
c) -3
d)
Show Answer
![Rendered by QuickLaTeX.com \sqrt 3](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-95e02b0b7917e6a24d9dd92e9f4bfbbf_l3.png)
![Rendered by QuickLaTeX.com 3 \sqrt3 \times \sqrt3](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-f52c9aec4be8593224239f43ad98f94b_l3.png)
Positive and Negative Exponent : Power Indices and Surds in Hindi
Q.14: 10100 को 575 से विभाजित करने पर भागफल क्या होगा ?
b) 1025
c) 275
d) 275 x 1025
Show Answer
Q.15: यदि 3x+8 = 272x+1 , तो x का मान क्या होगा :
a) 7
b) 3
c) -2
d) 1
Show Answer
3x+8 = 272x+1 = (33)2x+1 =36x+3
x+8 =6x + 3
5x = 5, x=1
Q.16: (36)1/6 के बराबर है :
a) 1
b) 6
c)
d)
Show Answer
![Rendered by QuickLaTeX.com \sqrt[3]{6}](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-58f86a3a7093d13f916e8ab8a686eba8_l3.png)
(36)1/6 = (62)1/6 = 61/3 =
![Rendered by QuickLaTeX.com \sqrt[3]{6}](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-58f86a3a7093d13f916e8ab8a686eba8_l3.png)
Based on Square Root Series : Power, Indices and Surds
Q.17: निम्न का मान क्या होगा ?
a) 5
b) 3
c) 2
d) 30
Show Answer
Let
![Rendered by QuickLaTeX.com \sqrt {6+\sqrt {6+\sqrt{6+ ...........}}} = x](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-0f9b1c16ad8263dd53d1cfa12d51636c_l3.png)
दोनों साइड का वर्ग कने पर
![Rendered by QuickLaTeX.com 6 + \sqrt {6+\sqrt {6+\sqrt{6+ ...........}}} = x^2](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-0cd91b506842e1463945496f6b3d9d55_l3.png)
=
![Rendered by QuickLaTeX.com x^2 = 6+x](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-0d5d6c3795e4de28ba993f6a25c672e4_l3.png)
=
![Rendered by QuickLaTeX.com x^2 - 3x +2x -6 = 0](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-e34b32fc1b31bac787c0f00b867f472c_l3.png)
=
![Rendered by QuickLaTeX.com (x-3)(x-2) = 0](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-4a9cc02e0a51f831ad23c3a92f16d4de_l3.png)
=
![Rendered by QuickLaTeX.com x = 3](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-e2c4e122462fb25369bbf71c27252ddb_l3.png)
Q.18: = ?
a) 4
b) 2
c) 8
d)
Show Answer
![Rendered by QuickLaTeX.com \dfrac {\sqrt{10+ \sqrt{25+ \sqrt{108+ \sqrt{154+ 15}}}}} {2}](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-2cc05282b56fcb3ad91f2a03a09d230c_l3.png)
=
![Rendered by QuickLaTeX.com \dfrac {\sqrt{10+ \sqrt{25+ \sqrt{108+ \sqrt{169}}}}} {2}](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-cffd047c6ba4696d7af653172d4f2b46_l3.png)
=
![Rendered by QuickLaTeX.com \dfrac {\sqrt{10+ \sqrt{25+ \sqrt{108+ 13}}}} {2}](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-79188f962602e702b1c7459faf77d18d_l3.png)
=
![Rendered by QuickLaTeX.com \dfrac {\sqrt{10+ \sqrt{25+ 11}}} {2}](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-c9d7859957d1eada1adb08a6cd747645_l3.png)
=
![Rendered by QuickLaTeX.com \dfrac {\sqrt{10+ 6}} {2} = \dfrac 42 = 2](https://nrastudy.com/wp-content/ql-cache/quicklatex.com-b488841f29fba3813949eca44ffeff29_l3.png)
Thanks for attempt Power Indices and Surds Questions in Hindi
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