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 phenomenon of nonuniform distribution of energy due to the superposition of two light waves is :
(A) refraction of light
(B) interference of light
(C) polarization of light
(D) reflection of light
Option b – interference of light
Interference of light is the physical effect that is produced due to the :
(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 Nicol prism, the role of Canada balsam is :
(A) to polarise light
(B) internally reflect E-ray
(C) internally reflect O-ray
(D) absorb E-ray and O-ray
Option c – internally reflect O-ray
Interference proves
(A) the transverse nature of a wave
(B) the longitudinal nature of a wave
(C) the wave nature
(D) the particle nature
Option c – the wave nature
When the interference of light takes place :
(A) energy is destroyed in the region of minimum intensity
(B) energy is created in the region of maximum intensity
(C) conservation of energy holds good and energy is redistributed
(D) conservation of energy does not hold well.
When interference takes place, there is redistribution in the :
(A) intensity of light
(B) amplitude
(C) phase of waves
(D) frequencies of light
Option a – intensity of light
To obtain the point of constructive interference due to two identical light waves :
(A) two light waves must be exactly in opposite phases
(B) two light waves must be exactly in the same phase
(C) two light waves should differ in phase by 7/2
(D) both (A) and (C)
Option b – two light waves must be exactly in the same phase
If the stretched sheet of polyvinyl alcohol is heated with HCL, then the polaroid is called :
(A) H – polaroid
(B) K – polaroid
(C) C-polaroid
(D) E – Polaroid
Option b – K – polaroid
The English physicist Herapath, in 1852, was successful in producing dichroic crystals called :
(A) Herraphite
(B) Herapathite
(C) Graphite
(D) iodide
Option b – Herapathite
The refractive index of calcite for ordinary and extraordinary rays are respectively :
(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
Polaroids glass is used in sunglasses because :
(A) It reduces the light intensity to half an account of polarization
(B) It is cheaper
(C) It is fashionable
(D) It has good color
Option a – It reduces the light intensity to half an account of polarization
A polariser is used to
(A) Produce polarised light
(B) Increase the intensity of light
(C) Produce unpolarised light
(D) To analyze polarised light
Option a – Produce polarised light
Which of the following polaroid is discovered 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
