Question

A. Choose the correct answer: 1. When the angle of incidence is 40°, the angle of reflection is a. 30° b. 40° c. 50° d. 80° 2. A man stands in front of a plane mirror at a distance of 2 metres. The distance of his image from him is a. 2 metres b. 1 metre c. 3 metres d. 4 metres 3. The three primary colours are a. red, green, yellow b. blue, violet, red c. green, blue, red d. cyan, magenta, yellow 4. The secondary colours are a. red, blue, green b. red, magenta, blue c. cyan, yellow, magenta d. yellow, green, red 5. A rose appears red in colour when a. it absorbs only red colour b. it reflects only red colour c. it reflects all colours d. it does not reflect any colour 6. When green and red light is mixed a. magenta colour is produced b. yellow colour is produced c. cyan colour is produced d. red colour is produced 7. Plane mirrors are used a. by opticians to increase the length of the room b. in vehicles as rear view mirrors c. to obtain images on screens d. as reflectors in street lamps 8. The image formed by a plane mirror is a. larger than the object b. smaller than the object c. of the same size as the object d. closer to the mirror than the object placed in front of it

          A. Choose the correct answer:
1. When the angle of incidence is 40°, the angle of reflection is
a. 30°
b. 40°
c. 50°
d. 80°
2. A man stands in front of a plane mirror at a distance of 2 metres. The distance of his image
from him is
a. 2 metres
b. 1 metre
c. 3 metres
d. 4 metres
3. The three primary colours are
a. red, green, yellow
b. blue, violet, red
c. green, blue, red
d. cyan, magenta, yellow
4. The secondary colours are
a. red, blue, green
b. red, magenta, blue
c. cyan, yellow, magenta
d. yellow, green, red
5. A rose appears red in colour when
a. it absorbs only red colour
b. it reflects only red colour
c. it reflects all colours
d. it does not reflect any colour
6. When green and red light is mixed
a. magenta colour is produced
b. yellow colour is produced
c. cyan colour is produced
d. red colour is produced
7. Plane mirrors are used
a. by opticians to increase the length of the room
b. in vehicles as rear view mirrors
c. to obtain images on screens
d. as reflectors in street lamps
8. The image formed by a plane mirror is
a. larger than the object
b. smaller than the object
c. of the same size as the object
d. closer to the mirror than the object placed in front of it

A. Choose the correct answer:
1. When the angle of incidence is 40°, the angle of reflection is
a. 30°
b. 40°
c. 50°
d. 80°
2. A man stands in front of a plane mirror at a distance of 2 metres. The distance of his image
from him is
a. 2 metres
b. 1 metre
c. 3 metres
d. 4 metres
3. The three primary colours are
a. red, green, yellow
b. blue, violet, red
c. green, blue, red
d. cyan, magenta, yellow
4. The secondary colours are
a. red, blue, green
b. red, magenta, blue
c. cyan, yellow, magenta
d. yellow, green, red
5. A rose appears red in colour when
a. it absorbs only red colour
b. it reflects only red colour
c. it reflects all colours
d. it does not reflect any colour
6. When green and red light is mixed
a. magenta colour is produced
b. yellow colour is produced
c. cyan colour is produced
d. red colour is produced
7. Plane mirrors are used
a. by opticians to increase the length of the room
b. in vehicles as rear view mirrors
c. to obtain images on screens
d. as reflectors in street lamps
8. The image formed by a plane mirror is
a. larger than the object
b. smaller than the object
c. of the same size as the object
d. closer to the mirror than the object placed in front of it

Added by Miguel V.

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