CBSE Class 12 Bengali Question Paper 2012 (Set 5)

CBSE CLASS XII Questions

• 1.

  "Under the provisions stated in Section 20 and Section 21 of the Reserve Bank of India (RBI) Act, 1934, the RBI is mandated to handle the banking operations of the Government of India."
  In the light of the given statement, elaborate the indicated function of the Reserve Bank of India.

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• 2.

  Aashree and Manvi were partners in a firm and their capitals were ₹ 6,00,000 and ₹ 4,00,000 respectively. Normal rate of return in a similar business was 15% and the goodwill of the firm was valued at ₹ 3,00,000. If goodwill was calculated at three years purchase of super profits, the average profits of the firm were :

  • ₹ 1,00,000
    
  • ₹ 45,000
    
  • ₹ 2,50,000
    
  • ₹ 1,50,000
    
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• 3.

  Why do transition metals show variable oxidation states?

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• 4.

  Based on the symptoms described, identify the types of stress Ritu is experiencing.
  

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• 5.

  Read the following statements carefully:
  Statement 1: Final goods are those goods which normally lose their identity in the production process.
  Statement 2: Final goods may get transformed during the consumption process by a consumer.

  • Statement 1 is true and statement 2 is false.
    
  • Statement 1 is false and statement 2 is true.
    
  • Both statements 1 and 2 are true.
    
  • Both statements 1 and 2 are false.
    
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• 6.

  Consider a cylindrical conductor of length \( l \) and area of cross-section \( A \). Current \( I \) is maintained in the conductor and electrons drift with velocity \( \vec{v}_d \, (|\vec{v}_d| = \frac{eE}{m} \tau) \), where symbols have their usual meanings. Show that the conductivity of the material of the conductor is given by \[ \sigma = \frac{n e^2 \tau}{m}. \]

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