Maharashtra Board Class 8 Science MCQ Chapter 16 Reflection of Light
1 ) Irregular reflection of light does not follow laws of reflection.
A ) True
B ) False
Ans B ) False
2 ) Used in submarines to see objects above the surface of water.
A ) Periscope
B ) Kaleidoscope
Ans A ) Periscope
3 ) The perpendicular to the mirror at the point of incidence is called.
A ) Incident ray B ) Reflected ray C ) Normal
Ans C ) Normal
4 ) The specialty of the kaleidoscope is that the designs do not repeat themselves.
A ) True
B ) False
Ans A ) True
5 ) The light which falls on the mirror, gets and travel in a different direction.
A ) Reflected
B ) Refracted
Ans A ) Reflected
6 ) The following are the three laws of reflection.
The angle of reflection is the angle of incidence.
A ) Less than
B ) Equal to
C ) Greater than
Ans B ) Equal to
7 ) The law of reflection – The incident ray, the reflected ray and the normal lie in ……………
A ) Opposite plane B ) Different plane C ) Same plane
Ans C ) Same plane
8 ) The angle between the incident ray and the normal is called angle of reflection.
A ) False
B ) True
Ans A ) False
9 ) The angle of incidence is 300, then the reflected ray will make an angle of 600 with the surface of the mirror.
A ) False
B ) True
Ans B ) True
10 ) The angle between the normal and the plane mirror is …………… .
A ) 1800
B ) 450
C ) 900
D ) 00
Ans C ) 900
11 ) Light travels in a line.
A ) Straight
B ) Curved
Ans A ) Straight
12 ) If the angle between the incident ray and normal is 400, then the angle between the reflected ray and normal will be
A ) 500
B ) 400
C ) 450
D ) 900
Ans B ) 400
13 ) The point at which the incident ray falls is called.
A ) Point of incidence B ) Angle of incidence C ) Normal
Ans A ) Point of incidence
14 ) An object used by people making wall paper to obtain different designs to decorate walls.
A ) Periscope
B ) Kaleidoscope
Ans B ) Kaleidoscope
15 ) A non-luminous source of light.
A ) Sun
B ) Moon
Ans B ) Moon
16 ) We can see objects , when the light coming from the enters our eyes.
A ) Surrounding
B ) Objects
C ) Room
Ans B ) Objects
17 ) The sun light falling on the surface of the moon is reflected as moon does not have light of its own.
A ) False
B ) True
Ans B ) True
18 ) Images of an object can be formed by ……………
A ) Heat
B ) Light
Ans B ) Light
19 ) Rays of light reflected from polished surface show regular reflection.
A ) True
B ) False
Ans A ) True
20 ) Based on properties of reflection of light.
A ) Periscope
B ) Magnifying glass
Ans A ) Periscope
21 ) The law of reflection – The incident ray and the reflected ray are on the sides of the normal.
A ) Same
B ) Opposite
C ) Different
Ans B ) Opposite
22 ) The rays going away from the surface after reflection are called.
A ) Incident ray B ) Reflected ray C ) Refracted ray
Ans B ) Reflected ray.
23 ) Used in underground bunkers to keep a watch on people on the ground.
A ) Periscope
B ) Kaleidoscope
Ans A ) Periscope
24 ) For regular reflection, the angles of incidence as well as angles of reflection are the same for all parallel rays falling on the surface.
A ) True
B ) False
Ans A ) True
25 ) The rays falling on any surface are called.
A ) Incident ray B ) Reflected ray C ) Refracted ray
Ans A ) Incident ray
26 ) In a saloon, the image of the back of your head is formed in the mirror at the back.
A ) True
B ) False
Ans A ) True
27 ) Label the figure
Ray OA – incident ray Ray ON – Normal
A ) Ray OB – Reflected ray
Point O – Point of incidence
Ray OA – reflected ray Ray ON – Normal
B ) Ray OB – Incident ray
Point O – Angle of incidence
Ans
Ray OA – incident ray Ray ON – Normal
A ) Ray OB – Reflected ray
Point O – Point of incidence
28 ) Turning back of the ray of light after striking a surface is called.
A ) Refraction of light B ) Reflection of light C ) Absorption of light
Ans B ) Reflection of light
29 ) The laws of reflection cannot be verified with the help of an experiment.
A ) True
B ) False
Ans B ) False
30 ) In regular reflection, the angles of incidence at different points are different.
A ) True
B ) False
Ans B ) False
31 ) Periscope consists of three rectangular mirrors of the same size.
A ) False
B ) True
Ans A ) False
32 ) If the incident ray strikes the surface at 900, then the reflected ray will travel back along the same path.
A ) True
B ) False
Ans A ) True
33 ) Rays of light reflected from wall show regular reflection.
A ) False
B ) True
Ans A ) False
34 ) We can see objects when the coming from these objects enter our eyes.
A ) Sight
B ) Light
Ans B ) Light
35 ) The image obtained in the mirror is real and erect.
A ) False
B ) True
Ans A ) False
36 ) If the angle between the reflected ray and incident ray is 1180, the angle of reflection is …………… .
A ) 590
B ) 1180
C ) 880
D ) 900
Ans A ) 590
37 ) Laws of reflection are followed in both regular and irregular reflection.
A ) False
B ) True
Ans B ) True
38 ) Scattering of light is an effect of irregular reflection of light.
A ) True
B ) False
Ans A ) True
39 ) Rays of light incident on the mirror will produce irregular reflection.
A ) False
B ) True
Ans A ) False
40 ) Search lights are based on regular reflection of light.
A ) True
B ) False
Ans A ) True
41 ) The sense of is the most important among our five senses.
A ) Sound
B ) Vision
Ans B ) Vision
42 ) ∠i = ∠r A ) True
B ) False
Ans A ) True
43 ) In regular reflection, the reflected rays are parallel to each other
A ) True
B ) False
Ans A ) True
