With the usual notations, the following equation St=u+12a(2t1) is

(1) Only numerically correct

(2) Only dimensionally correct

(3) Both numerically and dimensionally correct

(4) Neither numerically nor dimensionally correct

सामान्य संकेतन के साथ, निम्नलिखित समीकरण St=u+12a(2t1) है-

(1) केवल संख्यात्मक रूप से सही

(2) केवल विमीय रूप से सही

(3) संख्यात्मक और विमीय दोनों ही सही

(4) न तो संख्यात्मक रूप से और न ही विमीय रूप से सही

 54%

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The resistance R = Vi where V= 100 ± 5 volts and i = 10 ± 0.2 amperes. What is the total error in R

(1) 5%

(2) 7%

(3) 5.2%

(4) 52%

प्रतिरोध R = Vi जहाँ V= 100 ± 5 वोल्ट और i = 10 ± 0.2 एम्पियर है। में कुल त्रुटि क्या है?

(1) 5%

(2) 7%

(3) 5.2%

(4) 52%

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A physical quantity is given by X=MaLbTc. The percentage error in measurement of M, L and T are α,β and γ respectively. Then maximum percentage error in the quantity X is

(1) aα+bβ+cγ

(2) aα+bβcγ

(3) aα+bβ+cγ

(4) None of these

एक भौतिक राशि X=MaLbTc द्वारा दी जाती है। M, L और T के मापन में प्रतिशत त्रुटियाँ क्रमशः α,β और γ हैं। तब राशि X में अधिकतम प्रतिशत त्रुटि है- 

(1) aα+bβ+cγ

(2) aα+bβcγ

(3) aα+bβ+cγ

(4) इनमें से कोई नहीं

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The dimensional formula for Boltzmann's constant is 

(1) [ML2T2θ1]

(2) [ML2T2]

(3) [ML0T2θ1]

(4) [ML2T1θ1]

बोल्ट्जमान नियतांक का विमीय सूत्र है-

(1) [ML2T2θ1]

(2) [ML2T2]

(3) [ML0T2θ1]

(4) [ML2T1θ1]

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In an experiment, the following observation's were recorded : L = 2.820 m, M = 3.00 kg, l = 0.087 cm, Diameter D = 0.041 cm Taking g = 9.81 m/s2 using the formula , Y = 4MgLπD2l, the maximum permissible error in Y is

(1) 7.96%

(2) 4.56%

(3) 6.50%

(4) 8.42%

एक प्रयोग में, निम्नलिखित प्रेक्षण अंकित किए गए थे: L = 2.820 m, M = 3.00 kg, l = 0.087 cm, व्यास D = 0.041 cm, g = 9.81 m/sलेते हुए,Y = 4MgLπD2l सूत्र का प्रयोग करने पर, Y में अधिकतम अनुमेय त्रुटि है-

(1) 7.96%

(2) 4.56%

(3) 6.50%

(4) 8.42%

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In a system of units if force (F), acceleration (A) and time (T) are taken as fundamental units then the dimensional formula of energy is 

(1) FA2T

(2) FAT2

(3) F2AT

(4) FAT

यदि मात्रकों की एक पद्धति में बल (F), त्वरण (A) और समय (T) को मूल मात्रकों के रूप में लिया जाता है तब ऊर्जा का विमीय सूत्र है-

(1) FA2T

(2) FAT2

(3) F2AT

(4) FAT

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Out of the following, the only pair that does not have identical dimensions is 

(1) Angular momentum and Planck's constant

(2) Moment of inertia and moment of a force

(3) Work and torque

(4) Impulse and momentum

निम्नलिखित में से, एकमात्र युग्म जिसकी विमाएँ समान नहीं हैं-

(1) कोणीय संवेग और प्लांक नियतांक

(2) जड़त्व आघूर्ण और बल आघूर्ण

(3) कार्य और बल आघूर्ण

(4) आवेग और संवेग

 51%

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Dimensional formula of stress is

(1) M0LT2

(2) M0L1T2

(3) ML1T2

(4) ML2T2

प्रतिबल का विमीय सूत्र है-

(1) M0LT2

(2) M0L1T2

(3) ML1T2

(4) ML2T2

 58%

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Dimensions of potential energy are 

(1) MLT–1

(2) ML2T2

(3) ML1T2

(4) ML1T1

स्थितिज ऊर्जा की विमा है-

(1) MLT–1

(2) ML2T2

(3) ML1T2

(4) ML1T1

 60%

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The physical quantity which has dimensional formula as that of EnergyMass×Lengthis 

(1) Force

(2) Power

(3) Pressure

(4) Acceleration

वह भौतिक राशि जिसका विमीय सूत्र ऊर्जाद्रव्यमान×लंबाई के रूप में है-

(1) बल

(2) शक्ति

(3) दाब

(4) त्वरण

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