AP POLYCET PHYSICS Multiple Choice Questions (MCQs)

AP POLYCET PHYSICS - Reflection and Refraction of Light

46. What is the image formed by a concave mirror when the object is at infinity?
    A) Real and Inverted
    B) Virtual and Erect
    C) Virtual and Inverted
    D) Real and Erect
    Answer: A) Real and Inverted
47. What is the focal length of a plane mirror?
    A) Infinite
    B) Zero
    C) Positive
    D) Negative
    Answer: A) Infinite
48. When light passes from one medium to another, what determines the amount of bending?
    A) Speed of light in the second medium
    B) Wavelength of light
    C) Refractive index of the media
    D) None of the above
    Answer: C) Refractive index of the media
49. What is the effect of increasing the refractive index of a medium on the bending of light?
    A) Light bends less
    B) Light bends more
    C) No change in bending
    D) Light speeds up
    Answer: B) Light bends more
50. What happens when the angle of incidence exceeds the critical angle?
    A) Total internal reflection occurs
    B) Refraction occurs
    C) No reflection occurs
    D) Light passes straight through
    Answer: A) Total internal reflection occurs
51. The image formed by a convex mirror is always:
    A) Real and Erect
    B) Real and Inverted
    C) Virtual and Erect
    D) Virtual and Inverted
    Answer: C) Virtual and Erect
52. The speed of light in a medium depends on:
    A) The refractive index of the medium
    B) The density of the medium
    C) The wavelength of light
    D) Both A and C
    Answer: D) Both A and C
53. When a ray of light strikes a mirror at an angle of 30°, the angle of reflection will be:
    A) 15°
    B) 30°
    C) 60°
    D) 45°
    Answer: B) 30°
54. What is the property of a concave mirror when the object is placed at its focus?
    A) A virtual and erect image is formed
    B) No image is formed
    C) A real and inverted image is formed
    D) The image is at infinity
    Answer: D) The image is at infinity
55. The image formed by a plane mirror is:
    A) Virtual and Erect
    B) Real and Inverted
    C) Real and Erect
    D) Virtual and Inverted
    Answer: A) Virtual and Erect
56. When light enters a denser medium from a rarer medium, it:
    A) Bends away from the normal
    B) Bends towards the normal
    C) Continues straight
    D) Stops
    Answer: B) Bends towards the normal
57. The focal length of a lens is:
    A) Inversely proportional to the radius of curvature
    B) Directly proportional to the radius of curvature
    C) Equal to the radius of curvature
    D) Independent of the radius of curvature
    Answer: B) Directly proportional to the radius of curvature
58. The phenomenon of bending of light around the corners of obstacles is called:
    A) Diffraction
    B) Refraction
    C) Reflection
    D) Dispersion
    Answer: A) Diffraction
59. Which type of mirror is used in a torch light?
    A) Convex mirror
    B) Concave mirror
    C) Plane mirror
    D) None of the above
    Answer: B) Concave mirror
60. What is the angle of incidence at which total internal reflection occurs?
    A) Less than the critical angle
    B) Equal to the critical angle
    C) Greater than the critical angle
    D) Zero
    Answer: C) Greater than the critical angle

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