Quiz for Reflection

Q1: What is the angle of reflection when the angle of incidence is 45°?

A. 30° B. 45° C. 60° D. 90°

Q2: A ray of light falls normally on a plane mirror. The angle of reflection is:

A. 0° B. 90° C. 45° D. 180°

Q3: If a plane mirror is rotated by an angle θ, the reflected ray rotates by:

A. θ B. 2θ C. θ/2 D. No change

Q4: The image formed by a plane mirror is:

A. Real and inverted B. Virtual and erect C. Real and erect D. Virtual and inverted

Q5: The minimum number of plane mirrors required to view all sides of an object is:

A. 1 B. 2 C. 3 D. 4

Q6: The lateral inversion of image in a plane mirror occurs due to:

A. Refraction B. Diffraction C. Internal reflection D. Reflection

Q7: A periscope uses:

A. Two convex lenses B. Two plane mirrors C. Two concave mirrors D. One plane mirror and one convex lens

Q8: Which law is not applicable in the case of reflection?

A. Angle of incidence = angle of reflection B. Incident ray, normal and reflected ray lie in the same plane C. Speed of light changes D. None

Q9: If the object is moved closer to a plane mirror, the image:

A. Moves closer B. Moves farther C. Disappears D. Becomes real

Q10: The size of image formed in a plane mirror is:

A. Smaller B. Larger C. Same D. Double

Q11: Which of the following surfaces best reflects light?

A. White rough wall B. Black surface C. Polished metal surface D. Wooden surface

Q12: In lateral inversion, which sides are interchanged?

A. Top and bottom B. Front and back C. Left and right D. All directions

Q13: The distance between an object and its image in a plane mirror is:

A. Twice the object distance B. Equal to object distance C. Half the object distance D. Zero

Q14: The mirror used in solar cookers is generally:

A. Plane mirror B. Concave mirror C. Convex mirror D. None

Q15: The unit of reflectivity is:

A. No unit B. W/m² C. Joule D. Lux

Q16: A person can see his full image in a mirror of length at least:

A. Equal to his height B. Half his height C. One-third his height D. Double his height

Q17: The image in a plane mirror is laterally inverted because:

A. Reflected rays bend sideways B. Light undergoes dispersion C. Law of reflection D. None of these

Q18: Mirrors used in kaleidoscopes are arranged at an angle of:

A. 30° B. 60° C. 45° D. 90°

Q19: Which phenomenon explains the formation of an image in a mirror?

A. Diffraction B. Refraction C. Reflection D. Polarization

Q20: How many images are formed when two mirrors are placed at 90°?

A. 1 B. 2 C. 3 D. Infinite