Assertion :Light year’ and ‘Wavelength’ both measure distance.

Reason : Both have dimensions of time.

अभिकथन: ‘प्रकाश वर्ष’ और ‘तरंगदैर्ध्य’ दोनों दूरी मापते हैं। 

कारण: दोनों में समय की विमाएँ हैं।

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false

To view explanation, please take trial in the course.
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MLT1 represents the dimensional formula of 

(1) Power

(2) Momentum

(3) Force

(4) Couple

MLT1 किसके विमीय सूत्र को प्रदर्शित करता है?

(1) शक्ति

(2) संवेग 

(3) बल

(4) बलयुग्म

 69%
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The temperature of a body on Kelvin scale is found to be X K. When it is measured by a Fahrenheit thermometer, it is found to be X0F. Then X is

(1) 301.25

(2) 574.25

(3) 313

(4) 40

केल्विन पैमाने पर शरीर का तापमान X K पाया गया। जब इसे फारेनहाइट थर्मामीटर से मापा जाता है, तो यह X0F पाया जाता है। तो X है:

(1) 301.25

(2) 574.25

(3) 313

(4) 40

To view explanation, please take trial in the course.
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One centimeter on the main scale of Vernier calliper is divided into ten equal parts. If 10 divisions of Vernier scale coincide with 8 small divisions of the main scale, the least count of the callipers is:

(A)  0.01 cm

(B)  0.02 cm

(C)  0.05 cm

(D)  0.07 cm

वर्नियर कैलिपर के मुख्य पैमाने पर एक सेंटीमीटर को दस बराबर भागों में विभाजित किया गया है। यदि वर्नियर पैमाने के 10 विभाजन मुख्य पैमाने के 8 छोटे विभाजनों के सम्पाती हैं, तो कैलिपर का अल्पतमांक है:

(A)  0.01 cm

(B)  0.02 cm

(C)  0.05 cm

(D)  0.07 cm

 56%
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Out of the following which pair of quantities do not have same dimensions 

(1) Planck's constant and angular momentum

(2) Work and energy

(3) Pressure and Young's modulus

(4) Torque & moment of inertia

निम्नलिखित में से राशियों के किस युग्म में विमाएँ समान नहीं हैं:

(1) प्लांक नियतांक और कोणीय संवेग

(2) कार्य और ऊर्जा

(3) दाब और यंग मापांक

(4) बल आघूर्ण और जड़त्व आघूर्ण

 59%
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Dimensional formula for torque is 

(1) L2MT2

(2) L1MT2

(3) L2MT3

(4) LMT2

बल आघूर्ण के लिए विमीय सूत्र है:

(1) L2MT2

(2) L1MT2

(3) L2MT3

(4) LMT2

 54%
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Assertion : Number of significant figures in 0.005 is one and that in 0.500 is three.

Reason : This is because zeros are not significant.

अभिकथन: 0.005 में सार्थक अंको की संख्या एक है और 0.500 में तीन है।

कारण: ऐसा इसलिए है क्योंकि शून्य सार्थक नहीं होता हैं।

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
 51%
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In the relation P=αβeαZkθ P is pressure, Z is the distance, k is Boltzmann constant and θ is the temperature. The dimensional formula of β will be 

(1) [M0L2T0]

(2) [M1L2T1]

(3) [M1L0T1]

(4) [M0L2T1]

संबंध P=αβeαZkθ में P दाब है, दूरी है, k बोल्ट्समान नियतांक है और θ तापमान है। β का विमीय सूत्र होगा:

(1) [M0L2T0]

(2) [M1L2T1]

(3) [M1L0T1]

(4) [M0L2T1]

 

To view explanation, please take trial in the course.
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Assertion : Light year and year, both measure time.

Reason : Because light year is the time that light takes to reach the earth from the sun.

अभिकथन: प्रकाश वर्ष और वर्ष, दोनों समय को मापते हैं।

कारण: क्योंकि प्रकाश वर्ष वह समय है जो प्रकाश को सूर्य से पृथ्वी तक पहुंचने में लगता है।

  1. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
  2. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
  3. If the assertion is true but the reason is false
  4. If both the assertion and reason are false
To view explanation, please take trial in the course.
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If L, C and R represent inductance, capacitance and resistance respectively, then which of the following does not represent dimensions of frequency                        [Only for droppers]

(1) 1RC

(2) RL

(3) 1LC

(4) CL

यदि L, C और क्रमशः प्रेरकत्व, धारिता और प्रतिरोध को निरूपित करते हैं, तब निम्न में से कौन आवृत्ति की विमा  को निरूपित नहीं करता है? [केवल ड्रॉपर के लिए]

(1) 1RC

(2) RL

(3) 1LC

(4) CL

To view explanation, please take trial in the course.
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