physics std 9 ct3 revision

Beschreibung

Middle physics Quiz am physics std 9 ct3 revision, erstellt von Shachi Narula am 10/11/2017.
Shachi Narula
Quiz von Shachi Narula, aktualisiert more than 1 year ago
Shachi Narula
Erstellt von Shachi Narula vor mehr als 6 Jahre
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Zusammenfassung der Ressource

Frage 1

Frage
Image formed by a plane mirror is?
Antworten
  • real
  • inverted
  • erect
  • virtual , erect

Frage 2

Frage
Whenever a ray of light comes back into the same medium after striking the surface of another medium is called
Antworten
  • reflection
  • refraction
  • absorption

Frage 3

Frage
identify the type of reflection as shown in the picture.
Antworten
  • regular
  • irregular

Frage 4

Frage
label the diagram
Antworten
  • glance angle of incidence
  • glance angle of reflection

Frage 5

Frage
Look at the diagram and find the glance angle of incidence .
Antworten
  • 45 degrees
  • 90 degrees
  • 0 degrees

Frage 6

Frage
Look at the diagram and find i'
Antworten
  • 25 degrees
  • 65 degrees

Frage 7

Frage
Complete the diagram
Antworten
  • 60

Frage 8

Frage
Light is falling on the surfaces s1 , s2 and s 3. surfaces on which angle of incidence is equal to angle of reflection are
Antworten
  • s1 only
  • s1 and s2
  • s2 and s3
  • all three surfaces

Frage 9

Frage
A plane mirror produces an image which is erect , [blank_start]virtual[blank_end] and [blank_start]laterally inverted[blank_end].
Antworten
  • laterally inverted
  • virtual

Frage 10

Frage
find the angle of reflection .
Antworten
  • 65 degrees
  • 25 degrees

Frage 11

Frage
observe the diagram and find the angle between the two plane mirrors.
Antworten
  • 90 degrees
  • 60 degrees

Frage 12

Frage
observe the diagram and find the angle between the mirrors.
Antworten
  • 120 degrees
  • 90 degrees

Frage 13

Frage
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.
Antworten
  • 7 m
  • 10 m
  • 4 m

Frage 14

Frage
the image observed in the diagram is a virtual image.
Antworten
  • True
  • False

Frage 15

Frage
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?
Antworten
  • 62
  • 90
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