JAMB Physics questions: Light: reflection

14 questions with answers and explanations. Tap an option to check yourself.

1. Question 1· Light: reflection· JAMB

   An object is placed 15 cm from a concave mirror of focal length 10 cm. Find the image distance.

   • A30 cm
   • B6 cm
   • C25 cm
   • D5 cm

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   Explanation and discussion

2. Question 2· Light: reflection· JAMB

   A ray strikes a plane mirror at an angle of incidence of 35°. Find the angle between the incident and reflected rays.

   • A35°
   • B70°
   • C55°
   • D110°

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   Explanation and discussion

3. Question 3· Light: reflection· JAMB

   The image formed by a plane mirror is:

   • Areal and inverted
   • Bvirtual and magnified
   • Creal and diminished
   • Dvirtual and laterally inverted

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   Explanation and discussion

4. Question 4· Light: reflection· JAMB

   An object is 15 cm from a convex mirror of focal length 10 cm. The image is

   • Avirtual and magnified
   • Breal and inverted
   • Creal and magnified
   • Dvirtual, erect and diminished

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   Explanation and discussion

5. Question 5· Light: reflection· JAMB

   An image is 30 cm from a mirror when the object is 10 cm away. The magnification is

   • A20
   • B1/3
   • C3
   • D40

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6. Question 6· Light: reflection· JAMB

   Driving mirrors are convex because they

   • Aare cheap
   • Bmagnify images
   • Cform real images
   • Dgive a wide field of view

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7. Question 7· Light: reflection· JAMB

   A concave mirror is used as a shaving mirror because, with the face within its focal length, it gives

   • Aa real image
   • Ban inverted, diminished image
   • Can upright, magnified image
   • Dno image

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   Explanation and discussion

8. Question 8· Light: reflection· JAMB

   An object stands 20 cm in front of a plane mirror. How far is the image from the object?

   • A20 cm
   • B40 cm
   • C10 cm
   • D60 cm

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9. Question 9· Light: reflection· JAMB

   The word AMBULANCE is printed in reverse on the front of ambulances because a plane mirror

   • Aproduces real images
   • Bproduces magnified images
   • Cproduces lateral inversion
   • Dreverses top and bottom

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10. Question 10· Light: reflection· JAMB

    A spherical mirror has a radius of curvature of 20 cm. Its focal length is

    • A10 cm
    • B20 cm
    • C40 cm
    • D5 cm

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    Explanation and discussion

11. Question 11· Light: reflection· JAMB

    Convex mirrors are used as driving mirrors because they

    • Agive a wide field of view
    • Bgive magnified images
    • Cform real images
    • Dare cheap

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    Explanation and discussion

12. Question 12· Light: reflection· JAMB

    Two plane mirrors are inclined at 60° to each other. How many images of an object between them are formed?

    • A6
    • B5
    • C4
    • D3

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13. Question 13· Light: reflection· JAMB

    An object is placed 30 cm from a concave mirror of focal length 10 cm. Find the magnification of the image.

    • A0.5
    • B2
    • C3
    • D1.5

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    Explanation and discussion

14. Question 14· Light: reflection· JAMB

    

    A ray of light strikes a plane mirror at 30° to the mirror surface, as shown. What is the angle of reflection?

    • A90°
    • B30°
    • C60°
    • D120°

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    Explanation and discussion