railway RRB JE (CBT I + CBT II) Mock Test 2024 Electronic Devices Semiconductors

आवृत्ति 2 × 1014 Hz वाला प्रकाश तरंगदैर्ध्य _______वाले प्रकाश के समान होता है।

1

1.5 μm

2

150 μm

3

5 × 10-¹³m

4

1.5 × 10-¹³m

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