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WorksheetsLight Shadow and Reflection
Total questions: 18
Worksheet time: 13mins
Light travels in_______
straight line
curved line
zig-zag line
randomly
When an opaque object comes in the path of light it forms
(a) an image with colours
(b) shadow
(c) black and white image
(d) depends on the colour of the light
3)Which types of objects do not allow light to pass through them?
(a) Translucent
(b) Opaque
(c) Transparent
(d) Penumbra
4)Which is an example of a translucent object?
(a) A thin sheet of paper
(b) A thin glass slab
(c) A thin iron sheet
(d) All of these
5)Bouncing back of light from shining surfaces is called
(a) Reflection
(b) Refraction
(c) Bending
(d) Dispersion
6)What is lateral inversion?
(a) Image becomes inverted
(b) Image bends laterally
(c) Right of the object appears left of the image
(d) All of these happen
7)An example for the Rectilinear Propagation of light
a)Formation of clouds
b)Formation of day and night
c) Formation of rainbow
d) Formation of rain
8)The process of light turning back after striking the shiny side of mirror is called
(a)Refraction
(b)Shadow
(c)Reflection
(d)Umbra
9)The speed of light
a)299,792km/s
b)299,792m/s
c)29,792km/s
d)29,791m/s
10)This screen is a must to receive the shadow
a)transparent screen
b) Opaque screen
c) Translucent screen
d)No screen
An object or material could be opaque, transparent, translucent or ……………….. .
(a)
This is a …………… on which the shadow is formed.
(a)
A …………….. is a dark outline of an opaque object that blocks light coming from a source.
(a)
Image formed by a plane mirror is …………….. .
(a)
In a plane mirror, our left hand looks like right hand. This phenomenon is called ……………………… .
(a)
……………… objects cast no shadow.
(a)
Opaque objects cast …………………. shadows in morning and evening while ………………… shadows at noon.
(a)
Light travels in a ………….. .
(a)
