If P represents radiation pressure, c represents speed of light and Q represents radiation energy striking a unit area per second, then non-zero integers x, y and z such that PxQycz is dimensionless, are 

(1) x=1,  y=1,  z=1

(2) x=1,y=1,z=1

(3) x=1,y=1,z=1

(4) x=1,y=1,z=1

यदि विकिरण दाब को निरूपित करता है, प्रकाश की चाल को निरूपित करता है और Q प्रति सेकेण्ड एकांक क्षेत्रफल से टकराने वाली विकिरण ऊर्जा को निरूपित करता है, तब शून्येतर पूर्णांक x, y और इस प्रकार हैं कि PxQycz विमाहीन है- 

(1) x=1,  y=1,  z=1

(2) x=1,y=1,z=1

(3) x=1,y=1,z=1

(4) x=1,y=1,z=1

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Faraday is the unit of

(1) Charge

(2) emf

(3) Mass

(4) Energy

फैरेड किसका मात्रक है?

(1) आवेश

(2) विद्युत वाहक बल 

(3) द्रव्यमान

(4) ऊर्जा

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The dimensional formula for r.m.s. (root mean square) velocity is

(1) M0LT1

(2) M0L0T2

(3) M0L0T1

(4) MLT3

वर्ग माध्य मूल वेग के लिए विमीय सूत्र है-

(1) M0LT1

(2) M0L0T2

(3) M0L0T1

(4) MLT3

 51%

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If L denotes the inductance of an inductor through which a current i is flowing, the dimensions of Li2 are  

(1) ML2T2

(2) Not expressible in MLT

(3) MLT2

(4) LT

यदि एक प्रेरक के प्रेरकत्व को दर्शाता है जिसके माध्यम से एक धारा बह रही है, Li2 की विमा है-  

(1) ML2T2

(2) MLT में व्यक्त नहीं है

(3) MLT2

(4) LT

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Unit of moment of inertia in MKS system 

(1) kg×cm2

(2) kg/cm2

(3) kg×m2

(4) Joule×m

 MKS पद्धति में जड़त्व आघूर्ण का मात्रक है-

(1) kg×cm2

(2) kg/cm2

(3) kg×m2

(4) Joule×m

 53%

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The value of Planck's constant is

(1) 6.63×1034J​-​sec

(2) 6.63×1034J/sec

(3) 6.63×1034kg​-​m2

(4) 6.63×1034kg/sec

प्लांक नियतांक का मान है-

(1) 6.63×1034J​-​sec

(2) 6.63×1034J/sec

(3) 6.63×1034kg​-​m2

(4) 6.63×1034kg/sec

 50%

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Unit of stress is 

(1) N/m

(2) Nm

(3) N/m2

(4) Nm2

प्रतिबल का मात्रक है-

(1) N/m

(2) Nm

(3) N/m2

(4) Nm2

 57%

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Dimensional formula for angular momentum is

 (a) ML2T2

(2) ML2T1

(3) MLT1

(4) M0L2T2

कोणीय संवेग के लिए विमीय सूत्र है-

 (a) ML2T2

(2) ML2T1

(3) MLT1

(4) M0L2T2

 59%

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If L and R are respectively the inductance and resistance, then the dimensions of LR will be 

                                                                                             [Only for Dropper and XII batch]

(1) M0L0T1

(2) M0LT0

(3) M0L0T

(4) Cannot be represented in terms of M, L and T

यदि L और क्रमशः प्रेरकत्व और प्रतिरोध हैं, तो LR की विमा होगी-

[केवल ड्रॉपर और बारहवीं बैच के लिए]

(1) M0L0T1

(2) M0LT0

(3) M0L0T

(4) M, L और के पदों में निरूपित नहीं किया जा सकता

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Which of the following is not a unit of time

(1) Leap year

(2) Micro second

(3) Lunar month

(4) Light year

निम्नलिखित में से कौन समय का मात्रक नहीं है?

(1) अधिवर्ष 

(2) माइक्रो सेकेंड

(3) चंद्र मास

(4) प्रकाश वर्ष

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