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ICSE Class 9 Light (reflection, spherical mirrors) — practice questions

Explore 28 free Light (reflection, spherical mirrors) questions in ICSE Class 9 Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Light (reflection, spherical mirrors) questions and exercises with answers

Showing questions 1–28 of 28.

What is the turning back of a wave at an interface called?Read the answer and worked solution →In which plane do the incident ray, normal, and reflected ray lie?Read the answer and worked solution →If an angle of incidence is 35 degrees, what is the reflection angle?Read the answer and worked solution →At what angle does the normal line stand to a reflecting boundary?Read the answer and worked solution →What kind of reflection takes place when light hits a very smooth surface?Read the answer and worked solution →Why does light bounce in all directions from a rough non-metallic surface?Read the answer and worked solution →By which optical process do human eyes perceive most non-luminous objects?Read the answer and worked solution →What happens to rays striking a retroreflective surface?Read the answer and worked solution →How does a virtual image in a flat mirror appear horizontally?Read the answer and worked solution →How are three mirrors oriented to construct a simple corner retroreflector?Read the answer and worked solution →What shape describes a curved mirror whose center bulges outward?Read the answer and worked solution →What occurs when a collimated parallel beam reflects from a convex mirror?Read the answer and worked solution →Which virtual image traits are always produced by a convex mirror?Read the answer and worked solution →Why do motor vehicles use convex mirrors for passenger-side rear viewing?Read the answer and worked solution →What happens to a virtual image in a convex mirror as the object recedes?Read the answer and worked solution →Which term describes a mirror with a reflecting surface recessed inward?Read the answer and worked solution →Why are concave reflectors specifically designated as converging mirrors?Read the answer and worked solution →Which type of mirror provides a magnified erect image for applying makeup?Read the answer and worked solution →Why do torches and vehicle headlamps incorporate concave reflectors?Read the answer and worked solution →What defect occurs when parallel rays reflected by a spherical mirror blur?Read the answer and worked solution →Which reflector geometry focuses distant parallel rays to a sharp point?Read the answer and worked solution →Under standard sign conventions, which focal length value is positive?Read the answer and worked solution →What does a negative linear magnification indicate about the orientation?Read the answer and worked solution →Where does an incident ray parallel to the optical axis reflect through?Read the answer and worked solution →Match each spherical mirror term with its geometric definition:Read the answer and worked solution →Match each mirror type with its standard everyday use:Read the answer and worked solution →Match each mirror formula component with the Cartesian sign convention:Read the answer and worked solution →Match each concave mirror object placement with the resulting image:Read the answer and worked solution →

Worked practice questions

What is the turning back of a wave at an interface called?

  1. Refraction
  2. Reflection
  3. Dispersion
  4. Absorption
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Correct answer: B. Reflection

Reflection occurs when an incident wave returns into the original medium after striking an interface.

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In which plane do the incident ray, normal, and reflected ray lie?

  1. Two separate planes
  2. Perpendicular planes
  3. Intersecting planes
  4. The exact same plane
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Correct answer: D. The exact same plane

The incident ray, reflected ray, and normal at the point of incidence are always coplanar.

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If an angle of incidence is 35 degrees, what is the reflection angle?

  1. 35 degrees
  2. 55 degrees
  3. 70 degrees
  4. 90 degrees
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Correct answer: A. 35 degrees

The angle of reflection always equals the angle of incidence measured from the normal.

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