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Class 12 Physics Chapter 1 Objective Questions. We covered all the Class 12 Physics Chapter 1 Objective Questions in this post for free so that you can practice well for the exam.
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Class 12 Physics Chapter 1 Objective mcqs for Students
The uneven distribution of energy produced due to the overlap of two Light waves is known as
a) Refraction of Light
b) Interference of Light
c) Polarization of Light
d) Reflection of Light
Option b – Interference of Light
Interference of Light arises as a result of
a) Reflection of Light waves
b) Refraction of Light waves
c) Superposition of Light waves
d) Huygens’ principle
Option c – Superposition of light waves
In a Nicol prism, the function of Canada balsam is to
a) Polarize the incident light
b) Cause total internal reflection of the extraordinary ray
c) Cause total internal reflection of the ordinary ray
d) Absorb both ordinary and extraordinary rays
Option c – Cause total internal reflection of the ordinary ray
The phenomenon of interference establishes the
a) Transverse nature of waves
b) Longitudinal nature of waves
d) Particle Nature of Light
Option c – wave Nature of Light
During the process of interference of light
a) energy is lost in regions of minimum intensity
b) energy is generated in regions of maximum intensity
c) energy is conserved and redistributed
d) The law of conservation of energy fails
Option c – energy is conserved and redistributed
Interference leads to redistribution of
a) Light intensity
b) Amplitude
c) Phase of waves
d) Frequency of light
Option a – Light intensity
Constructive interference between two identical light waves occurs when
a) The waves are exactly out of phase
b) The waves are exactly in phase
c) The phase difference is 7π/2
d) Both (a) and (c)
Option b – The waves are exactly in phase
When a stretched polyvinyl Alcohol sheet is treated with hydrochloric Acid, the resulting polaroid is known as
a) H-polaroid
b) K-polaroid
c) C-polaroid
d) E-polaroid
Option b – K-polaroid
The dichroic crystals successfully prepared in 1852 by the English physicist Herapath were called
a) Herraphite
b) Herapathite
c) Graphite
d) Iodide
Option b – Herapathite
The refractive indices of calcite for the ordinary ray and extraordinary ray respectively are
a) 1.2, 2.4
b) 1.65, 1.48
c) 1.48, 1.65
d) 2.4, 1.2
Option b – 1.65, 1.48
Polaroid glass is commonly used in sunglasses because
a) It reduces light intensity to about half due to polarization
b) It is inexpensive
c) It is used mainly for fashion
d) It improves colour appearance
Option a – It reduces light intensity to about half due to polarization
A polarizer is primarily used to
a) Produce polarized light
b) Increase the intensity of light
c) Generate unpolarized light
d) Analyze polarized light
Option a – Produce polarized light
Which type of polaroid was developed by Land and Rogers?
a) P-polaroid
b) K-polaroid
c) H-polaroid
d) Herapathite polaroid
Option b – K-polaroid
We covered all the Class 12 Physics chapter 1 objective Questions above in this post for free so that you can practice well for the exam.
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Also, check out:
- Physics Book Class 12 UP Board
- ISC Class 12 Physics Chapter Wise Questions with Solutions
- Previous Year Question Paper of Class 12 Bihar Board Physics
