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Assertion (A): A p-n junction diode with low junction depth can be used as a solar cell when illuminated by suitable light (wavelength) at the top thin layer above the junction. Reason (R): A p-n junction diode under no condition can be used as a solar cell. It can be used only as a light-emitting diode for optoelectronic applications.
S1: While crossing a busy road we should obey the policeman on duty.
P: We should always cross the road at the zebra crossing.
Q: We must look to the signal lights and cross the road only when the road is clear.
R: If there are no signal lights at the crossing, we should look to the right, then to the left and again to the right before crossing the road.
S: If the road is not clear we should wait.
S6: We should never run while crossing a road.

The Proper sequence should be:
Which of the following are true? 1) In reverse bias, the diode undergoes stages of storage and transition times 2) Minority charge carriers accumulation makes the diode as a short circuit 3) Storage time is the sum of recovery and transition times
Advantage of Schottky diode over silicon crystal diode is the presence minority charge carriers.
The number of majority carriers that are available for recombining with excess minority carriers decreases as the excess semiconductor becomes intrinsic. Is it true?
The operation of JFET involves mainly: (a) Flow of Minority carriers (b) Flow of Majority carriers (c) A very high input impedance (d) Negative resistance   Which of the following is correct?
Calculate the radioactive minority carrier lifetime in gallium arsenide when the minority carriers are electrons injected into a p-type semiconductor region which has a hole concentration of 1018cm-3. The recombination coefficient for gallium arsenide is 7.21*10-10cm3s-1.
Match Old name with the new name. Old Name  New Name I. Allahabad Junction a) Pandit Deen Dayal Upadhyaya Junction II. Manduadih railway station b) Prayagraj Junction III. Mughalsarai junction c) Prayagraj Rambaug Railway station IV. Allahabad City railway station d) Banaras Railway Station Choose the correct code given below:
Sourab hires a car at junction A and drives 16 km towards north. He takes a right turn and drives 30 km to reach a bus stand. He now drives 10 km after taking a left turn to reach a petrol bunk. Finally, he takes a left turn and drives 30 km, and stops at Junction B. How far is junction A with respect to junction B?
A transistor is used in common emitter mode as an amplifier. Then a. The base-emitter junction is forward biased b. The base-emitter junction is reverse biased  c. The input signal is connected in series with the voltage applied to the base-emitter junction  d. The input signal is connected in series with the voltage applied to bias the base-collector junction Which of the following statement is true?