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The value of  is

  1. 0
  2. 2
  3. 4
  4. None of these

Answer (Detailed Solution Below)

Option 4 : None of these
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Detailed Solution

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Concept:

 

Calculation:

Let, 

        ----(  = 1)

       -----

Let 

Differentiating with respect to x, we get

                      

Limits become for x = 0, t = 0

for x = 1, t = 1/4 = 0.25

 

Hence, option (4) is correct.

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