WorksheetsLight
Total questions: 17
Worksheet time: 9mins
Why can't we see anything in a dark room?
A) Everything is black in colour.
B) Our eyes do not work in darkness.
C) No light reaches our eyes.
D) All the light gets scattered.
Which of the following are used in projectors?
A) Concave lens
B) Convex mirrors
C) Plane mirrors
D) Convex lenses
What happens during lateral inversion?
A) The right of the object will be on the right side of the image.
B) The left side of the object will be on the left side of the image.
C) The upper part of the object will be at the bottom of the object.
D) The right side of the object will be on the left side of the image.
Which one of the following statements is true?
A) A plane mirror sometimes forms an inverted image.
B) A concave mirror always forms a virtual, erect and diminished image.
C) A concave lens always forms a virtual, erect and diminished image.
D) All of the above
A reflecting surface is curved outwards. Which of the following mirrors is it likely to be?
A) Concave
B) Plane
C) Convex
D) All of the above
Why are convex mirrors used by drivers as rear view mirrors in vehicles?
A) They reflect light better than other mirrors.
B) They produce images which are clearer than those produced by others
C) They produce magnified images.
D) They give a wide field of view.
An object placed 3 m from a plane mirror is shifted by 0.4 m away from the mirror. What is the new distance between the object and its image?
A) 6.4 m
B) 6.8 m
C) 6 m
D) 5.2 m
An object was placed in front of the plane mirror as shown in the given picture. How will its image formed in plane mirror look like ?
Why is a spectrum of seven colours formed when sunlight passes through a prism?
A) White light is a mixture of seven colours.
B) The different colours of light is reflected at different angles in a glass prism.
C) The prism adds colour to the white sunlight.
D) Light travels at high speed.
Which of the following letters will be seen without any change in a plane mirror?
A) S
B) T
C) L
D) P
Which of the following is NOT a characteristic feature of a convex mirror?
A) The image is virtual
B) The image is diminished in size.
C) The image is erect.
D) The image is real.
Which of the following can form enlarged, virtual images?
A) Convex mirrors
B) Concave mirrors
C) Plane mirrors
D) Concave lens
Which of the following are used as reflectors in street lights to spread the light over a wide area ?
A) Concave mirrors
B) Plane mirrors
C) Convex mirrors
D) Convex lens
What is a stream of light called?
A) Ray
B) Beam
C) Twilight
D) Sunlight
The light beam emanating from a torch appears to be starting from a point and travels in various directions.
Identify the nature of light emitted from a torchlight.
A) Convergent
B) Divergent
C) Parallel
D) Irregular
Which of the following is a reflector of light?
A) The sun
B) The moon
C) The star
D ) Fire
What is called a source of light?
A) An object that can absorb light
B) An object that can reflect light
C) An object that can refract light
D) An object that can emit light
