1) The image in a convex mirror is always a) virtual, inverted and diminished b) virtual, erect and diminished c) real,erect and magnified d) real, erect and diminished 2) An example for non-luminous object is a) Moon b) Electric bulb c) Candle d) Sun 3) David is observing his image in a plane mirror. The distance between the mirror and his image is 4 m. If he moves 1 m towards the mirror, then the distance between David and his image will be a) 5 m b) 6 m c) 8 m d) 3 m 4) A virtual image larger than the object can be produced by a a) concave lens b) concave mirror c) plane mirror d) convex mirror 5) The rear view mirror of a car is a plane mirror. A driver is reversing his car at a speed of 2 m/s. The driver sees in his rear view mirror the image of a truck parked behind his car. The speed at which the image of the truck appears to approach the driver will be a) 1 m/s b) 2 m/s c) 4 m/s d) 8 m/s 6) When a plane mirror is rotated through an angle of 5 degree the reflected ray is rotated through on angle of a) 5 degree  b) 85 degree c) 2.5 degree d) 50 degree 7) The phenomenon by which the incident light falling on a surface is sent back into the same medium is known as a) absorbtion of light b) reflection of light c) refraction of light d) polarization of light 8) The focus of a concave mirror is a) at the pole b) real c) virtual d) unidentified 9) Another name for light bending is .... a) Reflection b) Absorbing c) Refraction d) mirror 10) Opaque means... a) No light passes through it b) All light passes through it c) Some light passes through it 11) What Does a Concave Lens Do? a) Make things bigger b) Make things smaller c) Make things closer d) Make things happy 12) The color you see is the color that is ___. a) reflected b) absorbed c) refracted d) scattered 13) ___________ is a from of energy that we can see with our eyes. a) shadow b) light c) energy d) reflection 14) แก้วใสน้ำ มี ช้อนอยู่ในแก้ว Which explains why the fork looks different under water? a) light can't pass through the glass b) light is reflected off the water c) the amount of light increases when going through water d) light is refracted as it passes through the water 15) When an opaque object blocks light, it creates a/an a) rainbow b) shadow c) reflection d) prism 16) Approximately, how fast does light travel? a) 120 kilometres per hour b) 3,000 kilometres per hour c) 3,000 kilometres per second d) 300,000 kilometres per second 17) How will a beam of light shining on a glass prism behave? a) It will be refracted b) It will be completely reflected c) It will be completely absorbed d) It will not be changed at all, instead being perfectly transmitted 18) There are forms of light which are invisible to the human eye. Which of these is an example? a) Ultraviolet b) Reflections c) Dark matter d) Starlight 19) Visible light contains many colours. Which of the following is not one of these colours? a) Green b) Yellow c) Black d) Red 20) Why does a green apple look green? a) It absorbs green light, but reflects the other colours b) It reflects green light, but absorbs all of the other colours c) It absorbs green light, but transmits all of the other colours d) It transmits all of the light

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