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Consider the following statements regarding Bunching process in Klystron: 1. Bunching occurs in two cavity Klystron amplifiers 2. Bunching occurs in multi cavity Klystron amplifiers 3. Bunching occurs in reflex Klystron oscillators Which of these statements are correct?
Klystron requires _______ for the klystron beam and up to _____ for the klystron reflector.
An oscilloscope is powered from 230 V mains having a nominal frequency of nearly 50 Hz. The triggering mode of the oscilloscope is set to LINE. A square wave from a function generator is fed to the Y input and a stable display (properly triggered) is obtained when the frequency of the function generator is 297 Hz. The actual frequency of the power supply is
The klystron tube used in a klystron amplifier is a _________ type beam amplifier.
With reference to the mobile phones, how do AMOLED (active-matrix organic light-emitting diode) displays differ from LCD (liquid crystal display) displays? 1. The colours are very sharp and vibrant with the AMOLED displays as compared to the LCD display.  2. In battery consumption, AMOLED displays efficiency is far ahead compared to the LCD display. 3. Most AMOLED display phones always cost more than LCD phones. Which of the above statements is/are correct?
What happens if the following program is compiled and executed? interface MyInterface{ void display(); } interface MySubInterface extends MyInterface{ void display(); } public class Test implements MySubInterface{ public void display(){ System.out.print("Welcome to Examveda."); } public static void main(String args[]){ Test t = new Test(); t.display(); } }
Consider the following statements: 1. Additional cavities serve to velocity-modulate the electron beam and produce an increase in the energy available at the output. 2. The addition of intermediate cavities between the input and output cavities of the basic klystron greatly improves the amplification, power output, and efficiency of the klystron. Which of the above statements is/are correct?
Which of the following oscilloscope is used in a digital storage oscilloscope?
Which oscilloscope is used in a digital storage oscilloscope?
Post office protocol (POP) is a message access protocol which is used to extract message for client. In this regard, which of the following are true ? (A) POP has two modes, Delete mode and keep (B) In Delete mode, mail is deleted from mail box after each retrival (C) In Delete mode, mail is deleted from mail box before each retrieval (D) In keep mode, mail is deleted before retrival (E) In keep mode, mail remains in mail box after retrival Choose the correct answer from the options given below: