Physics-
General
Easy
Question
Finger prints on a piece of paper may be detected by sprinkling fluorescent powder on the paper and then looking it into
- dark-light
- sun-light
- Infra-red-light
- ultraviolet light
The correct answer is: ultraviolet light
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A p-n junction (D) shown in the figure can act as a rectifier. An alternating current source (V) is connected in the circuit. 
The current (I) in the resistor (R) can be shown by:
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The logic circuit shown below has the input waveforms ‘A’ and ‘B’ as shown. Pick out the correct out put waveform.
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The circuit represents
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If in p-n junction diode, a square input signal of 10 V is applied as shown. Then the output signal across R L will be
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The circuit has two oppositely connected ideal diodes in parallel. What is the current flowing in the circuit?
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If the lattice constant of this semiconductor is decreased, then which of the following is correct?
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