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Jest Physics Question Paper. We covered all the Jest Physics Question Paper mcqs in this post for free so that you can practice well for the exam.
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Jest Physics Objective Question Paper for Students
Diode is used for
a. Modulator
b. Oscillator
c. Amplifier
d. Rectifier
Option a – Modulator
Three amplifier stages, each with a voltage gain of 10, are cascaded. The NET gain will be
a. 1000
b. 130
c. 200
d. 30
Option a – 1000
Semiconductor devices are
a. Temperature dependent
b. Temperature independent
c. Current dependent
d. Voltage-dependent
Option a – Temperature dependent
The ripple factor is defined as the ratio of
a. The RMS value of the AC component of rectifier to the value of the DC component of rectifier
b. The value of the DC component of the rectifier to the value of the AC component of the rectifier
c. The RMS of the DC component of the rectifier to the value of the AC component of rectifier
d. None of the above
Option a – The RMS value of the AC component of rectifier to the value of the DC component of rectifier
The first-order Bragg maximum of electron Diffraction in sodium chloride crystal (d=0.9896 Å) occurs at a glancing angle of 65°. The de-Broglie wavelength of the electron and their velocity is
a. 1.647 Å
b. 4.12 m/s
c. 4.424 m/s
d. 1 and 3
Option d – 1 and 3
A phase-shift oscillator with 3 stages of a high-pass RC Network is placed between the oscillator and Base circuits. The phase-shift created by each stage of the RC Network is approximately
a. 90°
b. 60°
c. 180°
d. 360°
Option b – 60°
A crystal oscillator provides a very stable frequency because of
a. High Q of the crystal
b. High stability of the crystal
c. The rigid crystal structure
d. High stability of the crystal
Option a – High Q of the crystal
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