LIGHT

Quiz
•
Physics
•
8th Grade
•
Hard
Jhumar Anand
Used 2+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Part of the eye which controls the light entering is called
(a) iris
b) cornea
(c) lens
(d) retina
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. We can see a non-luminous object when light:
(a) emitted by the object falls on the eye.
(b) is reflected from the object towards our eye.
(c) completely passes through the object.
(d) gets completely absorbed by the object.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Light is falling on surface S1, S2, S3 as shown in Fig.16.1.
Surfaces on which the angle of incidence is equal to the angle of reflection is/are
S1 only
s2 and S3
S1 and S2
All surfaces
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Two mirrors A and B are placed at right angles to each other as shown in Fig.16.4.
A ray of light incident on mirror A at an angle of 25 degree falls on mirror B after reflection. The angle of reflection for the ray reflected from mirror B would be
25
65
50
115
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following statements is correct regarding rods and cones in the human eye?
(a) Cones are sensitive to dim light.
(b) Cones are sensitive to bright light.
(c) Rods are sensitive to bright light.
(d) Rods can sense colour.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the figure of the human eye (Fig.16.5), the cornea is represented by the letter
A
B
C
D
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Name the part of the eye which gives colour to the eyes.
cornea
iris
pupil
retina
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