physics std 9 ct3 revision

Descripción

Middle physics Test sobre physics std 9 ct3 revision, creado por Shachi Narula el 10/11/2017.
Shachi Narula
Test por Shachi Narula, actualizado hace más de 1 año
Shachi Narula
Creado por Shachi Narula hace alrededor de 7 años
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Resumen del Recurso

Pregunta 1

Pregunta
Image formed by a plane mirror is?
Respuesta
  • real
  • inverted
  • erect
  • virtual , erect

Pregunta 2

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

Pregunta 3

Pregunta
identify the type of reflection as shown in the picture.
Respuesta
  • regular
  • irregular

Pregunta 4

Pregunta
label the diagram
Respuesta
  • glance angle of incidence
  • glance angle of reflection

Pregunta 5

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

Pregunta 6

Pregunta
Look at the diagram and find i'
Respuesta
  • 25 degrees
  • 65 degrees

Pregunta 7

Pregunta
Complete the diagram
Respuesta
  • 60

Pregunta 8

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

Pregunta 9

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

Pregunta 10

Pregunta
find the angle of reflection .
Respuesta
  • 65 degrees
  • 25 degrees

Pregunta 11

Pregunta
observe the diagram and find the angle between the two plane mirrors.
Respuesta
  • 90 degrees
  • 60 degrees

Pregunta 12

Pregunta
observe the diagram and find the angle between the mirrors.
Respuesta
  • 120 degrees
  • 90 degrees

Pregunta 13

Pregunta
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.
Respuesta
  • 7 m
  • 10 m
  • 4 m

Pregunta 14

Pregunta
the image observed in the diagram is a virtual image.
Respuesta
  • True
  • False

Pregunta 15

Pregunta
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?
Respuesta
  • 62
  • 90
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