Light: Mirrors and Lenses — Quiz

Q1. Ravi looks at his face in a shiny metal spoon. On the outer (bulging) side, his face appears

• A. Inverted and enlarged
• B. Inverted and same size
• C. Erect but smaller
• D. Erect and enlarged

Q2. Priya places a toy close to a concave mirror. The image she sees is

• A. Inverted and smaller than the toy
• B. Erect and larger than the toy
• C. Erect and same size as the toy
• D. Inverted and same size as the toy

Q3. The reflectors used in torches and the headlights of cars are concave because

• A. They spread light over a wider area
• B. They form an inverted image of the bulb
• C. They converge the light into a strong beam
• D. They form an erect, magnified image of the bulb

Q4. A convex mirror is preferred for side-view mirrors mainly because it

• A. Forms an inverted image of vehicles
• B. Forms an enlarged image of vehicles
• C. Provides a much wider field of view
• D. Reflects no light from the headlights

Q5. Two mirrors are placed face up on a table. Viewed from the side, one is curved inward and the other curved outward. The inward-curved one is

• A. A convex mirror
• B. A concave mirror
• C. A plane mirror
• D. A magnifying lens

Q6. Unlike spherical mirrors, a plane mirror always forms an image that is

• A. Erect and of the same size as the object
• B. Inverted and smaller than the object
• C. Erect and larger than the object
• D. Inverted and the same size as the object

Q7. A light ray strikes a plane mirror making an angle of 40° with the normal. The angle of reflection is

• A. 20°
• B. 50°
• C. 40°
• D. 90°

Q8. When light falls on a mirror along the normal, which statement is true?

• A. Angle of incidence is 90°
• B. Angle of incidence is 0°
• C. No reflection takes place
• D. Angle of reflection is 90°

Q9. The second law of reflection states that the incident ray, the normal at the point of incidence and the reflected ray all lie in

• A. Three different planes
• B. Two parallel planes
• C. The same plane
• D. Planes inclined at 60°

Q10. Multiple parallel beams of light fall on a plane mirror. The reflected beams are

• A. Converging
• B. Diverging
• C. Also parallel to each other
• D. Bent into a single ray

Q11. A concave mirror is held facing the Sun so that reflected sunlight falls on a sheet of paper. After a short time, the paper begins to burn because

• A. The mirror absorbs all the heat from the Sun
• B. Sunlight is converged to a small bright spot
• C. The paper itself produces heat
• D. Reflection cools the paper

Q12. A small drop of water is placed on an oiled glass strip over printed text. The letters under the drop appear larger because the water drop behaves like a

• A. Plane mirror
• B. Concave lens
• C. Translucent screen
• D. Convex lens

Q13. A magnifying glass used to read small print is an example of a

• A. Convex lens
• B. Concave lens
• C. Plane glass plate
• D. Concave mirror

Q14. A small toy is placed close to a convex lens and viewed through the lens. The toy appears

• A. Inverted and diminished
• B. Erect and enlarged
• C. Erect and same size
• D. Inverted and same size

Q15. A concave lens is also called a

• A. Converging lens
• B. Magnifying lens
• C. Reflecting lens
• D. Diverging lens