Wave Optics JEE Mains Questions. We covered all the Wave Optics JEE Mains Questions in this post for free so that you can practice well for the exam.
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MCQ on Wave Optics for JEE Students
A lady is standing in front of a plane mirror at a distance of 1 m from it. She walks 60 cm toward the mirror. The distance of her image now from herself (ignoring the thickness of the mirror) is
(a) 40 cm
(b) 60 cm
(c) 80 cm
(d) 120 cm
Option c – 80 cm
In which of the following mirror size of the image formed is always equal to the size of the object?
(a) Convex mirror
(b) Concave mirror
(c) Plane mirror
(d) Both convex and concave mirror
Option c – Plane mirror
Which one of the following is not true about the image formed by a plane mirror?
(a) It is of the same size as the subject.
(b) It is laterally inverted.
(c) It is a real image.
(d) It is formed as far behind the mirror as the object is in front.
Option c – It is a real image
Statement I Due to diffused or irregular reflection of light, a closed room gets light even if no direct sunlight falls inside the room. Statement II Irregular reflection, where the reflected rays are not parallel, does not follow the laws of reflection. Codes
(a) Both Statements I and II are correct and statement II is the correct explanation of statement I.
(b) Both Statements I and II are correct but statement II is not the correct explanation of statement I.
(c) Statement I is correct, but statement Il is incorrect.
(d) Statement I is incorrect, but statement II is correct.
Option c – Statement I is correct, but statement Il is incorrect
The radius of curvature of the plane mirror is
(a) Zero
(b) One
(c) Infinity
(d) Between one and infinity
Option c – Infinity
When an object is kept between two parallel plane mirrors then what is the number of images formed?
(a) 1
(b) 2
(c) 4
(d) Infinite
Option d – Infinite
In a periscope, the two plane mirrors are kept
(a) parallel to each other.
(b) perpendicular to each other.
(c) at an angle of 60° with each other.
(d) at an angle of 45° with each other.
Option a – parallel to each other
A curved mirror where the reflecting surface is curved inwards is called an
(a) concave mirror
(b) plano-convex mirror
(c) plane mirror
(d) convex mirror
Option a – concave mirror
A person holding a pen in his left-hand sees his reflection in the mirror holding the pen in his right hand. This is due to which of the following phenomena?
(a) Diffused reflection
(b) Total internal reflection
(c) Lateral inversion
(d) Refraction
Option c – Lateral inversion
In which mirror, an image formed is virtual, correct, and point sized?
(a) Plane
(b) Convex
(c) Concave
(d) No option is correct
Option b – Convex
If you look into a mirror and find that the image of your reflection is smaller than you, then the type of the mirror is
(a) Plano-concave mirror
(b) Concave mirror
(c) Plane mirror
(d) Convex mirror
Option d – Convex mirror
What is the Centre of Curvature of a spherical mirror?
(a) It is a point from which the rays of light appear to be coming on the principal axis of a convex mirror.
(b) It is the center of a hollow sphere of which the spherical mirror is a part.
(c) It is the midpoint of the spherical mirror.
(d) It is the point of the principal axis through which rays of light parallel to the principal axis pass after reflection.
Option b – It is the center of a hollow sphere of which the spherical mirror is a part
Which one of the following statements is correct for a plane mirror?
(a) Its focal length is zero.
(b) The size of the image of an object placed in front of the mirror is slightly less than that of the object.
(c) The image is virtual, erect, and laterally inverted.
(d) Its focal length is 200 cm.
Option c – The image is virtual, erect, and laterally inverted
Which of the following angles are equal in the case of a plane mirror? I. The angle of incidence is 9V II. The angle of refraction III. The angle of reflection
(a) Only I and II
(b) Only I and III
(c) Only II and III
(d) All the given angles are equal
Option b – Only I and III
In a solar eclipse
(a) the moon comes between the sun and the earth.
(b) Earth comes between the sun and the moon.
(c) the sun comes between the moon and the earth.
(d) None of the above
Option a – the moon comes between the sun and the earth
Which of the following phenomena is involved in Kaleidoscope?
(a) Refraction
(b) Reflection
(c) Total Internal Reflection
(d) Diffraction
Option b – Reflection
Which one of the following is a natural phenomenon based on simple periscope works?
(a) Reflection of light
(b) Refraction of light
(c) Dispersion of light
(d) Total internal reflection of light
Option a – Reflection of light
Which one of the following reflects back more sunlight as compared to the other three?
(a) Sand desert
(b) Land covered with fresh snow
(c) Prairie land
(d) Paddy cropland
Option b – Land covered with fresh snow
According to the law of reflection
(a) Angle of incidence is greater than the angle of reflection.
(b) The angle of incidence is smaller than the angle of reflection.
(c) The angle of incidence is always equal to the angle of reflection.
(d) Both angles are always unequal.
Option c – The angle of incidence is always equal to the angle of reflection
Light waves are ……..
(a) electric waves
(b) magnetic waves
(c) electromagnetic waves
(d) No option is correct
Option c – electromagnetic waves
How long does light take to reach the earth from the sun?
(a) About 4 min
(b) About 8 min
(c) About 24 min
(d) About 24 h
Option b – About 8 min
Which one of the following is not a luminous object?
(a) Sun
(b) Electric lamp
(c) Candle
(d) Moon
Option d – Moon
Light travel in an ( Wave Optics JEE Mains Questions )
(a) straight line
(b) circular path
(c) zig-zag path
(d) Both (a) and (c)
Option a – straight line
Light travels in a straight line (rectilinear propagation of light). This statement does hold if the medium of travel for light is
(a) of variable refractive index.
(b) made up of slabs of different refractive indices.
(c) homogeneous and transparent.
(d) inhomogeneous and transparent.
Option c – homogeneous and transparent
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