The communication system needed for a given signal depends on which of the following?
The frequencies for transmitting music is which of the following?
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Which of the following is mainly used in the production of Integrated Circuits?
Which among the following is not easy to fabricate on an Integrated Circuit?
Which among the following is larger compared to the other regions of a transistor?
On which of the following does base current not depend on?
The current gain of a transistor in a common emitter configuration is 50. If the emitter current is 5.5 mA, find the base current.
A transistor having α = 0.90 is used in a common base amplifier. If the load resistance is 5.0 kΩ and the dynamic resistance of the emitter junction is 50 Ω, then calculate the voltage gain.
What will the power gain of a transistor if it’s α value is 0.80 and the voltage gain is 95?
dentify the relationship between base current amplification (α) and emitter current amplification (β).
Which of the following supplies charge carriers in a transistor?
What is the order of the radius of an electron orbit in a hydrogen atom?
A hydrogen atom in its ground state absorbs 10.2 eV of energy. What is the orbital angular momentum is increased by?
When a hydrogen atom is in its first excited level, what is the relation of radius and Bohr radius?
Hydrogen atoms are excited from ground state to the state of principal quantum number 4. Then, what will be the number of spectral lines observed?
Which of the following is true regarding the Bohr model of atoms?
What will be the longest wavelength in the Balmer series of hydrogen spectrum?
The radius of the Bohr orbit depends on which of the following?
Which theory is confirmed by the Davisson – Germer experiment?
Which crystal is used in the Davisson – Germer experiment?
Identify the expression for Bragg’s law from the following.
Which of the following is used in the Davisson – Germer experiment?
Two beams, one of red light and the other of blue light, of the same intensity are incident on a metallic surface to emit photoelectrons. Which emits electrons of greater frequency?
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