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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:
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.
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?
For transistor action (a) Base, emitter, and collector regions should have similar size and doping concentrations. (b) The base region must be very thin and lightly doped. (c) The emitter-base junction is forward biased and the base-collector junction is reverse biased. (d) Both the emitter-base junction as well as the base-collector junction are forward biased. Which one of the following pairs of statements is correct?
Which of the following conditions must be satisfied for a transistor to be in saturation? 1. Its collector to base junction should be under forward bias 2. Its collector to base junction should be under reverse bias 3. Its emitter to base junction should be under reverse bias 4. Its emitter to base junction should be under forward bias Which of the above conditions are correct?
There are 2 taps connected to a bucket. One tap flow hot water and other tap flow cold water. Hot water tap can fill the bucket in 15 min and cold water tap can fill the bucket in 10 min. A person opened both the tap and left the place. He returned at the time when bucket should be full but he found that due to leakage in the bottom of bucket. It is yet to be full. He reported the leakage and bucket become full in 2 minutes more, in how much time leakage can empty the bucket alone?
A tap fills the tank with water in 2 hours. But due to the leakage of water due to a leakage in the tank, the tank fills in \(2 \frac{1}{3}\) hours. In how many hours will the leakage empty the tank?
There was a leakage in the storage container of corona vaccine. If 22 kl of vaccine leaked out per day then it would have lasted for 100 days, if the leakage was 30 kl per day, then it would have lasted for only 90 days. For how many days would the vaccine have lasted, if there was not any leakage.
Two taps can fill a tank individually in 10 min and 20 min respectively without any leakage. However, there is a leakage at the bottom which can empty the filled tank in 40 min. In how much time will both the taps fill the tank with leakage?