WorksheetsLight
Total questions: 25
Worksheet time: 13mins
The bouncing back of light into the same medium is called
refraction
reflection
dispersion
diffraction
Maximum part of light is reflected by
opaque object
translucent object
transparent object
all of these
The back side of a plane mirror contains
copper coating
aluminium coating
gold coating
silver coating
The angle between the reflected ray and the normal is called
angle of incidence
reflected ray
angle of reflection
point of incidence
There are (a) laws of reflection
The reflection of light from a smooth surface is called (a)
Type of mirror used as side view mirror is (a)
The nature of image formed by plane mirror is
real and inverted
virtual and erect
real and erect
virtual and inverted
A toy is placed at 10 cm in front of a plane mirror. What is the distance of image from the mirror?
20cm
40cm
10cm
5cm
Which of the following works on the concept of multiple reflections?
Telescope
Kaleidoscope
Binoculars
Sun glasses
Which of the following will produce a regular reflection?
Tree leaf
wall
wood
mirror
Which of the following parts of an eye controls the amount of light entering the eye by contracting or dilating?
(a)
Front bulged part of the eyeball is called
(a)
Band of seven colours is called (a)
We can see ourselves in a mirror or a polished surface but not on walls because of
regular reflection
normal reflection
irregular reflection
specular reflection
The property of a plane mirror to make ‘right appear as left’ and vice versa, is called
vertical inversion
lateral inversion
reflection
refraction
The perpendicular drawn to the reflecting surface is called
normal
reflected ray
incident ray
none of these
(a) is an optical element which is transparent with flat, polished surfaces that refract light.
The size of image formed by the plane mirror is (a) as size of object.
………………….. formation is the natural phenomenon showing dispersion.
(a)
The lens of the eye focuses light on ----------
(a)
The size of the pupil becomes ………………….. when we see in dim light.
(a)
The property of light shown in the image is (a)
This defect in eye is called (a)
The (a) contains rod and cone cells that respond to different wavelengths of light.
