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Worksheetsclass8
Total questions: 11
Worksheet time: 6mins
Name
Class
Date
1.
Splitting of light into its colours is known as ________ of light
a)
VIBGYOR
b)
Spectrum
c)
Rainbow
d)
Dispersion
2.
Braille system has ____ dots patterns and characters
a)
72
b)
73
c)
63
d)
64
3.
Sensations felt by the nerve cells are transmitted to the brain through the _______
a)
Optic nerve
b)
Blind spot
c)
Nerve cell
d)
Rods
4.
In old age eyesight becomes foggy when it happens person is said to have __________
a)
Myopia
b)
Cataract
c)
Hypermetropia
d)
Short sight
5.
_______ cell sense colours in retina
a)
Rods
b)
Cones
c)
Both a and b
d)
Optic nerve
6.
If the angle of incidence is 45 degree, what is the angle between the incident ray and reflecting surface
a)
45
b)
90
c)
180
d)
none of the above
7.
What is an image called that forms when light rays actually meet
a)
virtual image
b)
real image
c)
diffuse reflection
d)
regular reflection
8.
Images in a plane mirror are
a)
real
b)
larger
c)
same size
d)
smaller
9.
Law of reflection state that - The angle of incidence is .................. to the angle of reflection.
a)
equal
b)
double
c)
half
10.
The imaginary line perpendicular to a reflecting surface is called _____.
a)
crooked line
b)
parallel line
c)
angular line
d)
normal line
11.
What are all the things that were taught in ancient indian education?
a)
umrans
b)
puranas
c)
vedas
d)
pathshalas
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