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CBSE
Class 12
Physics
Physics Part - II
WAVE OPTICS
Question Bank

Question Bank - WAVE OPTICS

Practice Hub

Question Bank: WAVE OPTICS

This chapter covers the principles and phenomena of wave optics, including interference, diffraction, and polarization, highlighting their significance in understanding light behavior.

Structured practice

Question Bank - WAVE OPTICS

Q1.

Who proposed the corpuscular model of light?

Single Answer MCQ
Q-00085905
View explanation
Q2.

What did Christiaan Huygens contribute to the study of light?

Single Answer MCQ
Q-00085906
View explanation
Q3.

What phenomenon did Thomas Young's experiment in 1801 demonstrate?

Single Answer MCQ
Q-00085907
View explanation
Q4.

What is the relationship between light speed and the medium according to the wave model?

Single Answer MCQ
Q-00085908
View explanation
Q5.

Which theory was initially more accepted due to the authority of its proponent?

Single Answer MCQ
Q-00085909
View explanation
Q6.

What experimental confirmation supported Maxwell's theory of light?

Single Answer MCQ
Q-00085911
View explanation
Q7.

What is the wavelength of visible light approximately?

Single Answer MCQ
Q-00085913
View explanation
Q8.

How does Maxwell's theory explain light's ability to travel through a vacuum?

Single Answer MCQ
Q-00085915
View explanation
Q9.

What key concept did the Huygens principle establish?

Single Answer MCQ
Q-00085917
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Q10.

What concept did light being described as a transverse wave imply?

Single Answer MCQ
Q-00085919
View explanation
Q11.

What is one major difference between the corpuscular and wave models of light?

Single Answer MCQ
Q-00085921
View explanation
Q12.

Which model assumes light behaves like rays?

Single Answer MCQ
Q-00085923
View explanation
Q13.

What did Hertz's experiments confirm about electromagnetic waves?

Single Answer MCQ
Q-00085925
View explanation
Q14.

Why was the wave theory of light initially rejected?

Single Answer MCQ
Q-00085927
View explanation
Q15.

What underlies the phenomenon of interference in light?

Single Answer MCQ
Q-00085929
View explanation
Q16.

Which of the following is a limitation of geometrical optics?

Single Answer MCQ
Q-00085931
View explanation
Q17.

What does Huygens' principle state about each point on a wavefront?

Single Answer MCQ
Q-00085936
View explanation
Q18.

When light passes from a medium of lower speed to one of higher speed, what happens to the light ray?

Single Answer MCQ
Q-00085937
View explanation
Q19.

If the angle of incidence is equal to the critical angle when light transitions to a medium with a lower refractive index, what occurs?

Single Answer MCQ
Q-00085938
View explanation
Q20.

What is the relationship between the speed of light and the refractive index of a medium?

Single Answer MCQ
Q-00085939
View explanation
Q21.

Using Huygens' principle, if a plane wavefront strikes a boundary at an angle, how is the speed of the wave affected?

Single Answer MCQ
Q-00085940
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Q22.

When observing refraction using Huygens' principle, what angle is critical in determining the behavior of the waves?

Single Answer MCQ
Q-00085941
View explanation
Q23.

If the wavefront is represented as a straight line, what can be inferred about its propagation?

Single Answer MCQ
Q-00085942
View explanation
Q24.

At which incident angle does light refract at 90 degrees to the normal?

Single Answer MCQ
Q-00085943
View explanation
Q25.

What is the significance of secondary wavelets in Huygens' principle?

Single Answer MCQ
Q-00085944
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Q26.

How does the wavefront change shape according to Huygens' principle?

Single Answer MCQ
Q-00085945
View explanation
Q27.

What will happen to the amplitude of wavelets if a wavefront is approaching a denser medium?

Single Answer MCQ
Q-00085946
View explanation
Q28.

In Huygens' construction for a wavefront, when the wavefront moves a distance 'vt,' which aspect does this distance relate to?

Single Answer MCQ
Q-00085947
View explanation
Q29.

In the scenario of refraction, what does 'v2 < v1' indicate about the light's behavior?

Single Answer MCQ
Q-00085948
View explanation
Q30.

Huygens' principle assumes the amplitude of secondary wavelets is maximum in which direction?

Single Answer MCQ
Q-00085949
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Q31.

What is defined as a surface of constant phase in wave optics?

Single Answer MCQ
Q-00085950
View explanation
Q32.

According to Huygens' principle, what does each point on a wavefront act as?

Single Answer MCQ
Q-00085951
View explanation
Q33.

What shape does the wavefront take at a large distance from a point source?

Single Answer MCQ
Q-00085952
View explanation
Q34.

Which phenomenon can be explained using Huygens' principle?

Single Answer MCQ
Q-00085953
View explanation
Q35.

When light enters a denser medium, what happens to the wavefront according to Huygens' principle?

Single Answer MCQ
Q-00085954
View explanation
Q36.

What is the direction of the energy propagation in relation to the wavefront?

Single Answer MCQ
Q-00085955
View explanation
Q37.

According to Huygens’ principle, the position of a new wavefront can be determined by the

Single Answer MCQ
Q-00085956
View explanation
Q38.

Which of the following assumptions is NOT part of Huygens’ principle?

Single Answer MCQ
Q-00085957
View explanation
Q39.

The concept of secondary wavelets was introduced by which physicist?

Single Answer MCQ
Q-00085958
View explanation
Q40.

What must be done to derive the law of refraction using Huygens' principle?

Single Answer MCQ
Q-00085959
View explanation
Q41.

Huygens' principle can be used to explain the absence of which kind of wave?

Single Answer MCQ
Q-00085960
View explanation
Q42.

What is the effect of using Huygens' principle in deriving reflection and refraction laws?

Single Answer MCQ
Q-00085961
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Q43.

How does Huygens' principle treat wavefronts arriving at an interface?

Single Answer MCQ
Q-00085962
View explanation
Q44.

What is one limitation of Huygens' principle?

Single Answer MCQ
Q-00085963
View explanation
Q45.

What happens to the wavefront during reflection according to Huygens' principle?

Single Answer MCQ
Q-00085964
View explanation
Q46.

In Huygens’ principle, the change in shape of the wavefront is modeled using which geometrical concept?

Single Answer MCQ
Q-00085965
View explanation
Q47.

What is the purpose of using coherent sources in Young's double-slit experiment?

Single Answer MCQ
Q-00085966
View explanation
Q48.

In Young's experiment, how is constructive interference achieved?

Single Answer MCQ
Q-00085967
View explanation
Q49.

What type of light sources does Young's double-slit experiment require?

Single Answer MCQ
Q-00085968
View explanation
Q50.

Which formula is used to calculate the position of bright fringes in Young's experiment?

Single Answer MCQ
Q-00085969
View explanation
Q51.

Two sources are considered coherent if they have:

Single Answer MCQ
Q-00085970
View explanation
Q52.

In Young's experiment, if the distance between the slits is decreased, what effect does it have on the fringe width?

Single Answer MCQ
Q-00085971
View explanation
Q53.

When coherent waves meet, what type of interference is possible?

Single Answer MCQ
Q-00085972
View explanation
Q54.

If the wavelength of light used in Young's experiment is halved, what will happen to the fringe spacing?

Single Answer MCQ
Q-00085973
View explanation
Q55.

If the path difference between two coherent waves is equal to half a wavelength, what type of interference occurs?

Single Answer MCQ
Q-00085974
View explanation
Q56.

What observation indicates destructive interference in Young's double-slit experiment?

Single Answer MCQ
Q-00085975
View explanation
Q57.

In the context of wave addition, which scenario best exemplifies incoherent addition?

Single Answer MCQ
Q-00085976
View explanation
Q58.

In the context of Young's experiment, which of the following statements is true about fringe visibility?

Single Answer MCQ
Q-00085977
View explanation
Q59.

What is the resultant amplitude if two waves of amplitude 'a' interfere constructively?

Single Answer MCQ
Q-00085978
View explanation
Q60.

What phenomenon is responsible for the formation of fringes on the screen in Young's experiment?

Single Answer MCQ
Q-00085979
View explanation
Q61.

When two sound waves of equal amplitude are 180 degrees out of phase, what is the outcome at a point where they meet?

Single Answer MCQ
Q-00085980
View explanation
Q62.

Which of the following factors does NOT affect the fringe pattern in Young's double-slit experiment?

Single Answer MCQ
Q-00085981
View explanation
Q63.

If the phase difference between two waves is π radians, what is the path difference?

Single Answer MCQ
Q-00085982
View explanation
Q64.

When measuring the path difference in Young's experiment, what condition represents destructive interference?

Single Answer MCQ
Q-00085983
View explanation
Q65.

How is intensity related to amplitude in wave interference?

Single Answer MCQ
Q-00085984
View explanation
Q66.

What happens to the interference pattern if one of the slits in Young's experiment is covered?

Single Answer MCQ
Q-00085985
View explanation
Q67.

In a double-slit experiment, which factor primarily determines the position of the interference maxima?

Single Answer MCQ
Q-00085986
View explanation
Q68.

In Young's experiment, if the distance between the screen and the slits is doubled, what happens to the fringe separation?

Single Answer MCQ
Q-00085987
View explanation
Q69.

What will happen to the interference pattern if one of the coherent sources is removed?

Single Answer MCQ
Q-00085988
View explanation
Q70.

If the intensity of light source increases in Young's experiment, how does it affect the interference pattern?

Single Answer MCQ
Q-00085989
View explanation
Q71.

If the amplitude of one wave is tripled while the other remains constant, what changes occur in intensity?

Single Answer MCQ
Q-00085990
View explanation
Q72.

In the context of Young's experiment, what effect does using monochromatic light have on fringe visibility?

Single Answer MCQ
Q-00085991
View explanation
Q73.

Which pattern is formed when two incoherent light waves overlap?

Single Answer MCQ
Q-00085992
View explanation
Q74.

What shape do the interference fringes produced in Young's experiment typically take?

Single Answer MCQ
Q-00085993
View explanation
Q75.

In a scenario of destructive interference, how does one calculate the resultant amplitude?

Single Answer MCQ
Q-00085994
View explanation
Q76.

For two waves that are perfectly in phase and of equal amplitude, what is the resulting intensity compared to each individual intensity?

Single Answer MCQ
Q-00085995
View explanation
Q77.

How does the wavelength of light used in interference experiments affect the fringe spacing?

Single Answer MCQ
Q-00085996
View explanation
Q78.

When analyzing a wave interference pattern, which property is NOT a direct consequence of coherence?

Single Answer MCQ
Q-00085997
View explanation
Q79.

What is the primary phenomenon responsible for the formation of dark and bright regions in the diffraction pattern produced by a single slit?

Single Answer MCQ
Q-00085998
View explanation
Q80.

In a single slit diffraction experiment, when does a dark fringes occur?

Single Answer MCQ
Q-00085999
View explanation
Q81.

Which of the following best describes diffraction?

Single Answer MCQ
Q-00086000
View explanation
Q82.

What happens to the wavelength of light when it enters a denser medium?

Single Answer MCQ
Q-00086001
View explanation
Q83.

What is the role of the width of the slit in a single-slit diffraction pattern?

Single Answer MCQ
Q-00086002
View explanation
Q84.

In Young's double-slit experiment, what causes the interference pattern?

Single Answer MCQ
Q-00086003
View explanation
Q85.

For a single slit of width 'a', the angle of the first minimum in diffraction pattern is given by which equation?

Single Answer MCQ
Q-00086004
View explanation
Q86.

How does increasing the slit width affect the diffraction pattern?

Single Answer MCQ
Q-00086005
View explanation
Q87.

What is the effect of using monochromatic light in diffraction experiments?

Single Answer MCQ
Q-00086006
View explanation
Q88.

What principle explains why light can bend around obstacles?

Single Answer MCQ
Q-00086007
View explanation
Q89.

What phenomenon would you observe when a light wave passes through a narrow slit?

Single Answer MCQ
Q-00086008
View explanation
Q90.

Which factor does NOT influence the diffraction pattern created by a single slit?

Single Answer MCQ
Q-00086009
View explanation
Q91.

What occurs at the central maximum in a single slit diffraction pattern?

Single Answer MCQ
Q-00086010
View explanation
Q92.

When observing diffraction patterns, what type of light source is preferred for clearer distinct fringes?

Single Answer MCQ
Q-00086011
View explanation
Q93.

What is the condition for light to be polarized?

Single Answer MCQ
Q-00086012
View explanation
Q94.

In diffraction, what is the condition for avoiding dark fringes?

Single Answer MCQ
Q-00086013
View explanation
Q95.

Which of the following types of light is unpolarized?

Single Answer MCQ
Q-00086014
View explanation
Q96.

What happens to the diffraction pattern when the wavelength of light used is increased?

Single Answer MCQ
Q-00086015
View explanation
Q97.

What happens when polarized light passes through a second polarizer aligned at 90 degrees to the first?

Single Answer MCQ
Q-00086016
View explanation
Q98.

How is the intensity of transmitted light affected when using two crossed polaroids?

Single Answer MCQ
Q-00086017
View explanation
Q99.

Which effect can be used to demonstrate the polarization of light?

Single Answer MCQ
Q-00086018
View explanation
Q100.

What is the principle behind the working of polaroid glasses?

Single Answer MCQ
Q-00086019
View explanation
Q101.

What angle gives maximum transmitted intensity when a polarizer is set between two crossed polarizers?

Single Answer MCQ
Q-00086020
View explanation
Q102.

What does the electric field vector of a polarized light wave look like?

Single Answer MCQ
Q-00086021
View explanation
Q103.

Which application makes use of polarized light to reduce glare?

Single Answer MCQ
Q-00086022
View explanation
Q104.

What is the relationship between the angle of incidence and the polarization of light on reflection?

Single Answer MCQ
Q-00086023
View explanation
Q105.

Which of the following materials can be used to create polaroid sheets?

Single Answer MCQ
Q-00086024
View explanation
Q106.

What phenomenon explains why polarizers can manage light intensity effectively?

Single Answer MCQ
Q-00086025
View explanation
Q107.

What type of polarization occurs when light is scattered in the atmosphere?

Single Answer MCQ
Q-00086026
View explanation
Q108.

In what way does polarization affect the resolution of an optical system?

Single Answer MCQ
Q-00086027
View explanation
Q109.

When light passes through two polarizers set at 45 degrees to each other, what fraction of the intensity of the incoming light is transmitted?

Single Answer MCQ
Q-00086028
View explanation
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