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Important Questions for Class 12 HSC Physics Chapter Wise. We covered all the Important Questions for Class 12 HSC Physics Chapter Wise in this post for free so that you can practice well for the exam.
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- Previous Year Question Paper of Physics Class 12 Jkbose
- Physics Important Questions Class 12 UP Board
- Physics Class 12 Chapter 2 in Hindi
Important mcqs for Class 12 HSC Physics Chapter Wise for Students
The energy density of a medium varies how with its dielectric constant?
a) Directly proportional to the dielectric constant
b) Directly proportional to the square of the dielectric constant
c) Inversely proportional to the square of the dielectric constant
d) Inversely proportional to the dielectric constant
Option d – Inversely proportional to the dielectric constant
Which of the following substances is a polar dielectric?
a) H₂
b) N₂
c) CO₂
d) HCl
Option d – HCl
The energy per unit volume of a dielectric medium is:
a) Directly proportional to the square of the Electric Field intensity
b) Directly proportional to the square of the surface charge density
c) Directly proportional to the charge
d) Both (a) and (b)
Option d – Both (a) and (b)
A Molecule whose positive nuclei and revolving electrons’ centers of gravity do not coincide is called:
a) Dielectric
b) Polar dielectric
c) Nonpolar dielectric
d) Cannot be predicted
Option b – Polar dielectric
Which of the following represents a nonpolar dielectric?
a) CH₃
b) CH₄
c) OH
d) HCl
Option b – CH₄
A dielectric material essentially functions as a:
a) Insulator
b) Conductor
c) Semiconductor
d) Resistor
Option a – Insulator
A Molecule in which the centers of gravity of positive nuclei and electrons coincide is known as:
a) Dielectric
b) Polar dielectric
c) Nonpolar dielectric
d) Cannot be predicted
Option c – Nonpolar dielectric
The dipole moment per unit volume of a dielectric is called:
a) Polarisation density
b) Dielectric constant
c) Polar dielectrics
d) Nonpolar dielectrics
Option a – Polarisation density
An electric charge produces a field of 300 V/m in air. If the air is replaced by a medium of dielectric constant 3, the field intensity at the same point becomes:
a) 300 V/m
b) 100 V/m
c) 900 V/m
d) 50 V/m
Option b – 100 V/m
A metal sphere of radius 5 cm is charged to 100 V. The Electric Field intensity at its surface is:
a) 1000 V/m
b) 5000 V/m
c) 2500 V/m
d) 2000 V/m
Option d – 2000 V/m
We covered all the important Questions for Class 12 HSC Physics chapter wise above in this post for free so that you can practice well for the exam.
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Also, check out:
- Previous Year Question Paper of Physics Class 12 Jkbose
- Physics Important Questions Class 12 UP Board
- Physics Class 12 Chapter 2 in Hindi
