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1.
An owl can see clearly at night but not day time because it has
2.
In our eye _______ cells can sense colour
3.
If light falls perpendicularly on a plane mirror, what will be the angle in which it will be reflected?
4.
Which of the following is not a luminous object?
5.
To make a kaleidoscope we require
6.
In the retina of the eye, the area having no sensory cells is called
7.
Rainbow is a natural phenomenon showing
8.
Light passing through a prism splits into seven colours. This is called
9.
When we stand in front of our dressing table, our left hand seems to be right and right seems to be left. This is called
10.
If the angle of incidence of light falling on a plane mirror is 30 Degree, what will be the angle of reflection?