Class 7 Science MCQ Light

Question : Which one shows lateral inversion?

(a) Plane mirror
(b) Convex mirror
(c) Concave mirror
(d) All of these

Question : When light bounces off a surface, the surface is

(a) Transparent
(b) Reflector
(c) Opaque
(d) Translucent

Question : Splitting of white light into seven colours is called

(a) reflection of light
(b) Rectilinear propagation of light
(c) Lateral inversion
(d) Dispersion

Question : When white light is passed into a prism it splits into

(a) Seven colours
(b) Eight colours
(c) Five colours
(d) Three colours

Question : The mirror used in scooters, cars etc. to see the vehicles coming from the back is:

(a) concave mirror
(b) convex mirror
(c) plane mirror
(d) virtual mirror

Question : The mirror used as a shaving mirror is:

(a) plane
(b) convex
(c) concave
(d) spherical

Question : Which of the foilowing mirror is a car mirror made up of convex mirror that reflects the view out of the rear window?

(a) concave mirror
(b) rear-view mirror
(c) convex mirror
(d) none of these

Question : Lens are widely used in:

(a) spectacles
(b) telescopes
(c) microscope
(d) all of these

Question : Sunlight is

(a) Red in colour
(b) Green in colour
(c) Yellow in colour
(d) White in colour

Question : The light that is reflected from a compact disc (CD) consists of

(a) Seven colours
(b) Eight colours
(c) Five colours
(d) Three colours

Question : Concave lens is also known as

(a) Converging lens
(b) Diverging lens
(c) Bifocal length
(d) Biconcave lens

Question : If reflecting surface is convex, then it is a:

(a) concave mirror
(b) erect
(c) virtual
(d) convex mirror

Question : Light travels in

(a) Curved lines
(b) In circular path
(c) In straight line
(d) Zig-zag path

Question : Light is

(a) an electromagnetic radiation
(b) a transverse wave
(c) mass less
(d) All of the above

Question : Which of the following can be used to form a real image?

(a) Concave mirror only
(b) Plane mirror only
(c) Convex mirror only
(d) Both concave and convex mirrors

Question : Sunlight is

(a) Red in colour
(b) Green in colour
(c) Yellow in colour
(d) White in colour

Question : A virtual image

(a) can be formed on the screen
(b) cannot be formed on the screen
(c) is formed only by the plane mirror
(d) is formed only by the convex mirror

Question : A spherical mirror is a part of:

(a) sphere
(b) rectangle
(c) circle
(d) square

Question : change in the path of light after striking a mirror is called

(a) reflection of light
(b) Rectilinear propagation of light
(c) Lateral inversion
(d) Dispersion

Question : Image formed by a convex mirror is a

(a) Virtual image
(b) Erect
(c) Diminished
(d) All of the above

Question : When an object is placed between the Focus and centre of curvature of concave mirror, then

(a) Real
(b) Inverted
(c) Enlarged
(d) All of the above

Question : The image which can be caught on a screen is called

(a) Real image
(b) Virtual image
(c) Shadow
(d) Impression

Question : A virtual image larger than the object can be produced by a

(a) Plane Mirror
(b) Concave mirror
(c) Convex mirror
(d) All of the above

Question : Latha is observing her image in a plane mirror. The distance between the mirror and her image is 6m. If she moves 2m towards the mirror, then the distance between Latha and her image will be

(a) 8m
(b) 4m
(c) 10m
(d) 5m

Question : Type of mirror that is used as a rear-view mirror in case of vehicles is

(a) Concave mirror
(b) Convex mirror
(c) Plane mirror
(d) None of the

Question : You are provided with a convex mirror, a concave mirror, a convex lens and a concave lens. You can get an inverted image from

(a) both concave lens and convex lens
(b) both concave mirror and convex mirror
(c) both convex mirror and convex lens
(d) both convex mirror and concave lens

Question : The image formed by a concave lens is always virtual, erect and:

(a) bigger in size
(b) smaller in size
(c) medium in size
(d) all of these

Question : Light is

(a) an electromagnetic radiation
(b) a transverse wave
(c) mass less
(d) All of the above

Question : An image being in such a position that top and bottom are reversed is:

(a) erect
(b) virtual
(c) concave
(d) inverted

Question : The image formed by a concave mirror can be smaller or larger in size than the object, the image may also be real or:

(a) erect
(b) virtual
(c) convex
(d) concave

Question : In order to be used as mirrors, glasses are coated with

(a) silver
(b) copper
(c) aluminium
(d) platinum

Question : Looking through a lens at the sun or a bright light is:

(a) easy
(b) dangerous
(c) difficult
(d) good

Question : Band of seven colour of light appeared on screen when white light passes through is prism is called

(a) Spectrum
(b) Refractive index
(c) Angle of deviation
(d) Colour band

Question : A diverging mirror is

(a) a plane mirror
(b) a convex mirror
(c) a concave mirror
(d) a shaving mirror

Question : If an object is placed at a distance of 0.5 m in front of a plane mirror, the distance between the object and the image formed by the mirror will be

(a) 2 m
(b) 1 m
(c) 0.5 m
(d) 0.25 m

Question : A convex lens can form:

(a) horizontal and vertical image
(b) real and inverted image
(c) real and virtual image
(d) virtual and erect image

Question : Which colour of light scattered least

(a) Green
(b) Yellow
(c) Red
(d) Blue

Question : The object in which seven colours spread over it appears to be white in colour when rotated is Called

(a) Galileo’s disc
(b) Newton’s disc
(c) Rutherford’s disc
(d) Faraday’s disc

Question : Which of the foilowing mirror is a car mirror made up of convex mirror that reflects the view out of the rear window?

(a) concave mirror
(b) rear-view mirror
(c) convex mirror
(d) none of these

Question : Which of the following is used as a side view mirror?

(a) Plane mirror
(b) Concave mirror
(c) Convex mirror
(d) Convex lens

Question : A convex lens is

(a) thick at centre
(b) thin at the centre
(c) thick at edges
(d) hollow at the centre

Question : A plane mirror produces a

(a) virtual and erect image
(b) virtual and inverted image
(c) real and erect image
(d) real and inverted image