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QAIPM-2012-Ph-1727: NEET 2012 Physics - Class 12 AIPM-2012-Ph-1727 Solution: A ray of light is incident at an angle of incidence i on one…
A ray of light is incident at an angle of incidence i on one face of a prism of angle A (assumed to be small) and emerges normally from the opposite face. If the refractive index of the prism is the angle of incidence i is nearly equal to
Multiple Choice Options
- A 0.1 V
- B 1.0 V
- C 1 mV
- D 10 mV
Step-by-Step Verified Solution
Here, R C
= 2 k � = 2 _ 10 3 �
V 0
= 2 V, R B
= 1 k � = 1 _ 10 3 � , _ = 100
The output voltage, across the load R C
V 0 = I C R C = 2
The collector current (I C )
I C = 2 2 _ 10 3 = 10 -3 A = 1 mA
Current gain( _ ) = I C I B = 100
_ I B = I C 100 = 10 _ 3 100 = 10 -5 A
Input voltage, V i
= I B R B
= (10 �5 A) (1 _ 10 3 � )
= 10 �2 V = 10 mV