Error in the measurement of radius of a sphere is 1%. The error in the calculated value of its volume is 

(1) 1%

(2) 3%

(3) 5%

(4) 7%

एक गोलक की त्रिज्या के मापन में 1% की त्रुटि है। इसके आयतन के मान की गणना में कितनी त्रुटि है?

(1) 1%

(2) 3%

(3) 5%

(4) 7%

 61%

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A physical parameter a can be determined by measuring the parameters b, c, d and e using the relation a = bαcβ/dγeδ. If the maximum errors in the measurement of b, c, d and e are b1%, c1%, d1% and e1%, then the maximum error in the value of a determined by the experiment is

(1) (b1+c1+d1+e1)%

(2) (b1+c1d1e1)%

(3) (αb1+βc1γd1δe1)%

(4) (αb1+βc1+γd1+δe1)%

एक भौतिक प्राचल संबंध a = bαcβ/dγeδ का उपयोग करके प्राचलों b, c, d और e के मापन के द्वारा निर्धारित किया जा सकता हैं। यदि b, c, d और e के मापन में अधिकतम त्रुटियां क्रमशः b1%, c1%, d1% और e1% है, तब प्रयोग द्वारा निर्धारित के मान में अधिकतम त्रुटि कितनी है?

(1) (b1+c1+d1+e1)%

(2) (b1+c1d1e1)%

(3) (αb1+βc1γd1δe1)%

(4) (αb1+βc1+γd1+δe1)%

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Frequency is the function of density (ρ), length (a) and surface tension (T). Then its value is 

(1) T1/2a3/2

(2) kρ3/2a3/2/T

(3) T3/21/2a3/2

(4) T3/21/2a1/2

आवृत्ति, घनत्व (ρ), लंबाई (a) और पृष्ठ तनाव (T) का फलन है। तब इसका मान है:

(1) T1/2a3/2

(2) kρ3/2a3/2/T

(3) T3/21/2a3/2

(4) T3/21/2a1/2

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Dimension of electric current is 

(1) [M0L0T1Q]

(2) [ML2T1Q]

(3) [M2LT1Q]

(4) [M2L2T1Q]

 विद्युत धारा की विमा है-

(1) [M0L0T1Q]

(2) [ML2T1Q]

(3) [M2LT1Q]

(4) [M2L2T1Q]

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If pressure P, velocity V and time T are taken as fundamental physical quantities, the dimensional formula of force is  

(1) PV2T2

(2) P1V2T2

(3) PVT2

(4) P1VT2

यदि दाब P, वेग और समय T को मूल भौतिक राशियों के रूप में लिया जाता है, बल का विमीय सूत्र है- 

(1) PV2T2

(2) P1V2T2

(3) PVT2

(4) P1VT2

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Dimensional formula of magnetic flux is 

(1) ML2T2A1

(2) ML0T2A2

(3) M0L2T2A3

(4) ML2T2A3

चुंबकीय फ्लक्स का विमीय सूत्र है-

(1) ML2T2A1

(2) ML0T2A2

(3) M0L2T2A3

(4) ML2T2A3

 54%

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The quantities A and B are related by the relation, m = A/B, where m is the linear density and A is the force. The dimensions of B are of

(1) Pressure

(2) Work

(3) Latent heat

(4) None of the above

राशियाँ A और B संबंध m = A/से संबंधित हैं, जहाँ m रेखीय घनत्व है और बल है। B की विमा किसके समान है- 

(1) दाब

(2) कार्य

(3) गुप्त ऊष्मा

(4) उपरोक्त में से कोई नहीं

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The dimensions of inter atomic force constant are 

(1) MT2

(2) MLT1

(3) MLT2

(4) ML1T1

अंतरापरमाणुक बल नियतांक की विमा है-

(1) MT2

(2) MLT1

(3) MLT2

(4) ML1T1

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The dimensions of universal gravitational constant are

(1) M2L2T2

(2) M1L3T2

(3) ML1T2

(4) ML2T2

सार्वत्रिक गुरुत्वाकर्षण नियतांक की विमा है-

(1) M2L2T2

(2) M1L3T2

(3) ML1T2

(4) ML2T2

 61%

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1kWh=

(1) 1000W

(2) 36×105J

(3) 1000J

(4) 3600J

1kWh=

(1) 1000W

(2) 36×105J

(3) 1000J

(4) 3600J

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