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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 woman stands 1 m away from a plane mirror. She then moves 60 cm closer to it. What will be the distance between her and her image, assuming the mirror’s thickness is negligible?
(a) 40 cm
(b) 60 cm
(c) 80 cm
(d) 120 cm
Option c – 80 cm
In which type of mirror is the image size always equal to the size of the object?
(a) Convex mirror
(b) Concave mirror
(c) Plane mirror
(d) Both convex and concave mirrors
Option c – Plane mirror
Which statement is incorrect regarding the image formed by a plane mirror?
(a) The image is the same size as the object
(b) The image is laterally inverted
(c) The image is real
(d) The image appears as far behind the mirror as the object is in front
Option c – The image is real
Statement I: Diffused or irregular reflection allows a closed room to be lit even without direct sunlight entering. Statement II: In irregular reflection, the reflected rays are not parallel and do not follow the laws of reflection. Codes:
(a) Both statements I and II are correct, and II correctly explains I
(b) Both statements I and II are correct, but II is not the correct explanation of I
(c) Statement I is correct, but statement II is incorrect
(d) Statement I is incorrect, but statement II is correct
Option c – Statement I is correct, but statement II is incorrect
What is the radius of curvature of a plane mirror?
(a) Zero
(b) One
(c) Infinity
(d) Between one and infinity
Option c – Infinity
When an object is placed between two parallel plane mirrors, how many images are formed?
(a) 1
(b) 2
(c) 4
(d) Infinite
Option d – Infinite
In a periscope, how are the two plane mirrors positioned?
(a) Parallel to each other
(b) Perpendicular to each other
(c) At an angle of 60° to each other
(d) At an angle of 45° to each other
Option a – Parallel to each other
A curved mirror with its reflective surface curved inward is called
(a) Concave mirror
(b) Plano-convex mirror
(c) Plane mirror
(d) Convex mirror
Option a – Concave mirror
When a person holding a pen in their left hand sees the mirror image holding it in the right hand, this is due to
(a) Diffused reflection
(b) Total internal reflection
(c) Lateral inversion
(d) Refraction
Option c – Lateral inversion
In which mirror is the image always virtual, upright, and reduced to a point size?
(a) Plane mirror
(b) Convex mirror
(c) Concave mirror
(d) None of these
Option b – Convex mirror
If the image in a mirror appears smaller than the actual object, what type of mirror is being used?
(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) The point from which rays in a convex mirror appear to originate on the principal axis
(b) The centre of the hollow sphere of which the mirror is a part
(c) The midpoint of the mirror’s surface
(d) The point on the principal axis where rays parallel to it pass after reflection
Option b – The centre of the hollow sphere of which the mirror is a part
Which is correct for a plane mirror?
(a) Its focal length is zero
(b) The image is slightly smaller than the object
(c) The image is virtual, upright, and laterally inverted
(d) Its focal length is 200 cm
Option c – The image is virtual, upright, and laterally inverted
In a plane mirror, which angles are always equal? I. Angle of incidence II. Angle of refraction III. Angle of reflection
(a) I and II only
(b) I and III only
(c) II and III only
(d) All of the above
Option b – I and III only
During a Solar eclipse
(a) The moon comes between the sun and the Earth
(b) The Earth comes between the sun and the moon
(c) The sun comes between the moon and the Earth
(d) None of these
Option a – The moon comes between the sun and the Earth
Which phenomenon is used in a kaleidoscope?
(a) Refraction
(b) Reflection
(c) Total internal reflection
(d) Diffraction
Option b – Reflection
Which natural phenomenon works on the same principle as a simple periscope?
(a) Reflection of Light
(b) Refraction of Light
(c) Dispersion of Light
(d) Total internal reflection of Light
Option a – Reflection of Light
Which of these reflects the most sunlight?
(a) Sandy desert
(b) Freshly fallen snow
(c) Prairie land
(d) Paddy field
Option b – Freshly fallen snow
According to the law of reflection
(a) The 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 equals the angle of reflection
(d) Both angles are always unequal
Option c – The angle of incidence equals the angle of reflection
Light waves are classified as
(a) Electric waves
(b) Magnetic waves
(c) Electromagnetic waves
(d) None of these
Option c – Electromagnetic waves
The time taken by sunlight to reach the Earth is approximately
(a) 4 minutes
(b) 8 minutes
(c) 24 minutes
(d) 24 hours
Option b – 8 minutes
Which of the following is not a luminous object?
(a) Sun
(b) Electric lamp
(c) Candle
(d) Moon
Option d – Moon
Light travels in
(a) A straight line
(b) A circular path
(c) A zig-zag path
(d) Both (a) and (c)
Option a – A straight line
Rectilinear propagation of Light occurs only when the medium is
(a) Of varying refractive index
(b) Composed of slabs with different refractive indices
(c) Homogeneous and transparent
(d) Non-uniform and transparent
Option c – Homogeneous and transparent
We covered all the wave Optics JEE mains Questions above in this post for free so that you can practice well for the exam.
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