science
Grade-7
Easy
Question
What are the things that one needs to see an object?
- Light
- Eyes
- Reflection
- All of the above
The correct answer is: All of the above
- Light, eyes and reflection of light from the object is necessary to see an object.
- So, the correct option is d.
Related Questions to study
science
As the angle of incidence decreases, the angle made by the reflected ray with the normal _______.
As the angle of incidence decreases, the angle made by the reflected ray with the normal _______.
scienceGrade-7
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An incident ray goes along the normal. The corresponding reflected ray ____.
An incident ray goes along the normal. The corresponding reflected ray ____.
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Translucent objects ____ light.
Translucent objects ____ light.
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Irregular reflection of a parallel beam of light yields ____.
Irregular reflection of a parallel beam of light yields ____.
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Irregular reflection is not carried out when light falls on a ___ surface.
Irregular reflection is not carried out when light falls on a ___ surface.
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Regular reflection of a parallel beam of light yields ____.
Regular reflection of a parallel beam of light yields ____.
scienceGrade-7
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What kind of surfaces produce a sharp image of an object placed in front of them?
Diffused reflection occurs at rough surfaces.
What kind of surfaces produce a sharp image of an object placed in front of them?
scienceGrade-7
Diffused reflection occurs at rough surfaces.
science
A mirror produces ____ and ____ images.
A mirror is a reflective surface.
A mirror produces ____ and ____ images.
scienceGrade-7
A mirror is a reflective surface.
science
Which of the following reflects the highest amount of light?
Which of the following reflects the highest amount of light?
scienceGrade-7
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Regular reflection takes place when light falls on a ____ surface.
Diffused reflection occurs at rough surfaces.
Regular reflection takes place when light falls on a ____ surface.
scienceGrade-7
Diffused reflection occurs at rough surfaces.
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Diffused reflection produces ____ image.
- Regular reflection occurs at the surface of a plane surface like a plane mirror.
- Produces sharp images.
Diffused reflection produces ____ image.
scienceGrade-7
- Regular reflection occurs at the surface of a plane surface like a plane mirror.
- Produces sharp images.
science
An imaginary line drawn perpendicular to the reflecting surface is called the ____.
An imaginary line drawn perpendicular to the reflecting surface is called the ____.
scienceGrade-7
science
The angle of incidence is _____ to the angle of reflection always.
The angle of incidence is _____ to the angle of reflection always.
scienceGrade-7
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The phenomenon of bouncing back of light rays when it falls on a surface is called ____.
The phenomenon of bouncing back of light rays when it falls on a surface is called ____.
scienceGrade-7
