Physics Book Class 11 UP Board. We covered all the Physics Book Class 11 UP Board MCQs in this post for free so that you can practice well for the exam.
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Physics Book Class 11 UP Board Objective for Students
The inductive reactance (Wh) of a coil is expressed in
a. Ampere
b. Volt
c. Ohm
d. Weber
Option c – Ohm
The ratio of e/m of a proton and e/m of an alpha particle is
a. 2 : 1
b. 1 : 2
c. 1 : 4
d. 1 : 1
Option a – 2 : 1
The forbidden energy gap of Ge crystal at 0°K is
a. 0.72 eV
b. 0.072 eV
c. 1.05 eV
d. 1 eV
Option a – 0.72 eV
The current that results from thermoionic emission is known as
a. Thermoionic current
b. Induced current
c. Photo-electric current
d. None of the above
Option a – Thermoionic current
Transistor stands for
a. Transfer power
b. Transfer voltage
c. Transfer resistance
d. Transfer current
Option a – Transfer power
Crystal diodes as compared to vacuum diodes are
a. smaller in size
b. lighter
c. efficient
d. all of these
Option d – all of these
The mutual characteristics of a triode valve can be obtained by plotting
a. Plate current and potential
b. Grid current and plate potential
c. Plate current and grid voltage
d. Grid current and grid potential
Option a – Plate current and potential
An N-type semiconductor has
a. Electrons in excess
b. Both holes and electrons in excess
c. Holes in excess
d. None of the above
Option a – Electrons in excess
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