physics std 9 ct3 revision

Question 1 of 15

1

Image formed by a plane mirror is?

Select one of the following:

real
inverted
erect
virtual , erect

Explanation

Question 2 of 15

1

Whenever a ray of light comes back into the same medium after striking the surface of another medium is called

Select one of the following:

reflection
refraction
absorption

Explanation

Question 3 of 15

1

identify the type of reflection as shown in the picture.

Select one of the following:

regular
irregular

Explanation

Question 4 of 15

1

label the diagram

Drag the answer into the correct orange point.

glance angle of incidence

glance angle of reflection

Explanation

Question 5 of 15

1

Look at the diagram and find the glance angle of incidence .

Select one of the following:

45 degrees
90 degrees
0 degrees

Explanation

Question 6 of 15

1

Look at the diagram and find i'

Select one of the following:

25 degrees
65 degrees

Explanation

Question 7 of 15

1

Click on the orange point and write the correct answer.

Complete the diagram

Explanation

Question 8 of 15

1

Light is falling on the surfaces s1 , s2 and s 3.
surfaces on which angle of incidence is equal to angle of reflection are

Select one of the following:

s1 only
s1 and s2
s2 and s3
all three surfaces

Explanation

Question 9 of 15

1

Fill the blank spaces to complete the text.

A plane mirror produces an image which is erect , and .

Explanation

Question 10 of 15

1

find the angle of reflection .

Select one of the following:

65 degrees
25 degrees

Explanation

Question 11 of 15

1

observe the diagram and find the angle between the two plane mirrors.

Select one of the following:

90 degrees
60 degrees

Explanation

Question 12 of 15

1

observe the diagram and find the angle between the mirrors.

Select one or more of the following:

120 degrees
90 degrees

Explanation

Question 13 of 15

1

In the diagram below, a person is standing 5 meters from a plane mirror. The chair in front of the person is located 2 meters from the mirror.

Select one of the following:

7 m
10 m
4 m

Explanation

Question 14 of 15

1

the image observed in the diagram is a virtual image.

Select one of the following:

True
False

Explanation

Question 15 of 15

1

A ray of light strikes a plane mirror at a 45° angle of incidence. The mirror is then rotated by α =31° into the position shown in red in the drawing, while the incident ray is kept fixed.
By what angle is the reflected ray rotated?

Select one of the following:

62
90

	Created by Shachi Narula almost 7 years ago

Middle physics Quiz on physics std 9 ct3 revision, created by Shachi Narula on 10/11/2017.

physics std 9 ct3 revision

Question 1 of 15

Image formed by a plane mirror is?

Select one of the following:

Explanation

Question 2 of 15

Whenever a ray of light comes back into the same medium after striking the surface of another medium is called

Select one of the following:

Explanation

Question 3 of 15

identify the type of reflection as shown in the picture.

Select one of the following:

Explanation

Question 4 of 15

label the diagram

Drag the answer into the correct orange point.

Explanation

Question 5 of 15

Look at the diagram and find the glance angle of incidence .

Select one of the following:

Explanation

Question 6 of 15

Look at the diagram and find i'

Select one of the following:

Explanation

Question 7 of 15

Click on the orange point and write the correct answer.

Complete the diagram

Explanation

Question 8 of 15

Light is falling on the surfaces s1 , s2 and s 3. surfaces on which angle of incidence is equal to angle of reflection are

Select one of the following:

Explanation

Question 9 of 15

Fill the blank spaces to complete the text.

A plane mirror produces an image which is erect , and .

Explanation

Question 10 of 15

find the angle of reflection .

Select one of the following:

Explanation

Question 11 of 15

observe the diagram and find the angle between the two plane mirrors.

Select one of the following:

Explanation

Question 12 of 15

observe the diagram and find the angle between the mirrors.

Select one or more of the following:

Explanation

Question 13 of 15

In the diagram below, a person is standing 5 meters from a plane mirror. The chair in front of the person is located 2 meters from the mirror.

Select one of the following:

Explanation

Question 14 of 15

the image observed in the diagram is a virtual image.

Select one of the following:

Explanation

Question 15 of 15

A ray of light strikes a plane mirror at a 45° angle of incidence. The mirror is then rotated by α =31° into the position shown in red in the drawing, while the incident ray is kept fixed. By what angle is the reflected ray rotated?

Select one of the following:

Explanation

Light is falling on the surfaces s1 , s2 and s 3.
surfaces on which angle of incidence is equal to angle of reflection are

A ray of light strikes a plane mirror at a 45° angle of incidence. The mirror is then rotated by α =31° into the position shown in red in the drawing, while the incident ray is kept fixed.
By what angle is the reflected ray rotated?