Quiz
physics std 9 ct3 revision
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Perguntas do quiz (15)
1Image formed by a plane mirror is?
- Areal
- Binverted
- Cerect
- Dvirtual , erect
2Whenever a ray of light comes back into the same medium after striking the surface of another medium is called
- Areflection
- Brefraction
- Cabsorption
3identify the type of reflection as shown in the picture.
- Aregular
- Birregular
4label the diagram
- Aglance angle of incidence
- Bglance angle of reflection
5Look at the diagram and find the glance angle of incidence .
- A45 degrees
- B90 degrees
- C0 degrees
6Look at the diagram and find i'
- A25 degrees
- B65 degrees
7Complete the diagram
- A60
8Light is falling on the surfaces s1 , s2 and s 3.
surfaces on which angle of incidence is equal to angle of reflection are
- As1 only
- Bs1 and s2
- Cs2 and s3
- Dall three surfaces
9A plane mirror produces an image which is erect , [blank_start]virtual[blank_end] and [blank_start]laterally inverted[blank_end].
- Alaterally inverted
- Bvirtual
10find the angle of reflection .
- A65 degrees
- B25 degrees
11observe the diagram and find the angle between the two plane mirrors.
- A90 degrees
- B60 degrees
12observe the diagram and find the angle between the mirrors.
- A120 degrees
- B90 degrees
13In 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.
- A7 m
- B10 m
- C4 m
14the image observed in the diagram is a virtual image.
- AVerdadeiro
- BFalso
15A 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?
- A62
- B90
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- O usuário eliminou as informações de disciplina Quiz sobre physics std 9 ct3 revision, criado por Usuário eliminado em 10-11-2017.
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- Criado em 10 nov 2017 · atualizado em 10 nov 2017
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