NEET 2024 Botany Question Paper with Answers and Solutions PDF Q4

NEET Questions

• 1.

  एक एकसमान धात्विक तार, जिसका प्रतिरोध 4Ω है, को एक वर्गाकार लूप (ABCD) (चित्र देखें) के रूप में मोड़ा गया। एक 2Ω का प्रतिरोध बिंदुओं B और D के बीच जोड़ा गया और एक 2 V की बैटरी को बिंदुओं A और C के आरपार जोड़ा गया जैसा कि चित्र में दिखाया गया है। अब धारा (I) का मान है: 
   

  

  • 2 A
    
  • 4 A
    
  • 8 A
  • 4.5 A
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• 2.

  A room heater is rated 400 W, 220 V. If the supply voltage drops to 200 V, what will be the power consumed (approximately)? ____.
  

  • 121 W
    
  • 200 W
    
  • 400 W
    
  • 331 W
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• 3.

  The following plots show variation of velocity (v), with time (t), of a ball thrown vertically upward, and falling back. Which of the following plots is/are correct?
  

  

  • B only
    
  • A and E only
    
  • D only
    
  • C only
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• 4.

  The figure given below shows a long straight solid wire of circular cross-section of radius ‘a’ carrying steady current I. The current I is uniformly distributed across its cross-section. The plot which correctly represents the variation of magnetic field (B) with distance (r) from the axis of the conductor in the region is: ____.
  

  

  • A
  • B
  • C
  • D
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• 5.

  The speed of light in vacuum is taken as unity. If light takes 6 min 40 s to reach the Earth from the Sun, the distance between the Sun and the Earth in new unit is: ____.
  

  • 500
    
  • 3 $\times$ 10⁸
    
  • 400
    
  • 3 $\times$ 10¹⁰
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• 6.

  An ac circuit contains a resistance of 1 k$\Omega$, a capacitor of 0.1 $\mu$F and an inductor of 1 mH connected in series. The resonance frequency of the circuit is approximately: ____.
  

  • 13.5 kHz
    
  • 15.9 kHz
    
  • 10.1 kHz
    
  • 20.7 kHz
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