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Physics · PYQ NEET UG 2026

हिन्दी

Three identical p-n junction diodes ( D_1, D_2 ) and ( D_3 ) are connected across a battery as shown in the figure. If the width of the depletion regions of ( D_1, D_2 ) and ( D_3 ) are ( W_1, W_2 ) and ( W_3 ), respectively, then the correct option is :

  1. ( W_1 > W_2 > W_3 )
  2. ( W_3 = W_1 > W_2 )
  3. ( W_3 > W_2 > W_1 )
  4. ( W_2 > W_1 = W_3 )

Correct answer · Option 1

( W_1 > W_2 > W_3 )

Explanation

Diode ( D_1 ) is reverse biased (large depletion width), ( D_2 ) is forward biased (small depletion width), and ( D_3 ) is also forward biased or has intermediate potential. Hence, ( W_1 > W_2 > W_3 ).

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