Light, Shadows and Reflections
Each subtopic includes About section, revision page link, 10 preview questions, and practice CTAs.
Luminous and Non-luminous Objects
SubtopicLuminous and Non-luminous Objects under Light, Shadows and Reflections for Grade 6 CBSE.
Preview questions (no answers)
- 1.
A flashlight bulb while the switch is in the 'ON' position is:
A.Luminous
B.Non-luminous
C.A natural source
D.Transparent only
- 2.
Which of these is a natural non-luminous object?
A.A lit candle
B.A tree
C.A firefly
D.The Sun
- 3.
A computer monitor that is powered on and displaying a picture is:
A.Luminous
B.Non-luminous
C.A natural source
D.A reflector
- 4.
Which of these objects is visible only when light falls on it?
A.A lit matchstick
B.A glowing LED
C.A school bag
D.The Sun
- 5.
A lightning strike is a short-lived:
A.Natural luminous source
B.Artificial luminous source
C.Natural non-luminous source
D.Artificial non-luminous source
- 6.
The main difference between a glowing bulb and a mirror is that:
A.The bulb is natural, the mirror is artificial
B.The bulb emits light, the mirror reflects it
C.The mirror is luminous, the bulb is non-luminous
D.Both are natural sources of light
- 7.
A 'Reflector' on a bicycle's wheel is:
A.A luminous object
B.A non-luminous object
C.A source of light
D.A natural object
- 8.
Which of the following is NOT a requirement for an object to be classified as a 'Luminous Object'?
A.It must emit light.
B.The light must be its own.
C.It must be visible in a dark room.
D.It must be a natural object.
- 9.
If you look at the Earth from the Moon, the Earth appears bright. This is because:
A.The Earth is a star.
B.The Earth reflects sunlight just like the Moon does.
C.The Earth has many city lights that make the whole planet luminous.
D.The Earth's atmosphere produces its own light.
- 10.
An object that does not give out its own light but reflects light from another source is called a:
A.Luminous body
B.Illuminated (Non-luminous) body
C.Opaque body
D.Translucent body
Download the worksheet for Light, Shadows and Reflections - Luminous and Non-luminous Objects to practice offline. It includes additional chapter-level practice questions.
Formation of Shadows and Pinhole Camera
SubtopicFormation of Shadows and Pinhole Camera under Light, Shadows and Reflections for Grade 6 CBSE.
Preview questions (no answers)
- 1.
A shadow is always formed on the _________ side of the light source.
A.Same
B.Opposite
C.Upper
D.Lower
- 2.
To use a pinhole camera, the box should be made _________ from the inside to avoid reflections.
A.Bright
B.White
C.Dark or Black
D.Shiny
- 3.
Which of the following objects can cast a shadow on the moon during a lunar eclipse?
A.The Sun
B.The Earth
C.A Star
D.A Satellite
- 4.
The images of the Sun seen through gaps in leaves are examples of images formed by:
A.Lenses
B.Mirrors
C.Natural pinhole cameras
D.Shadows
- 5.
What is the nature of the image formed in a pinhole camera compared to a shadow?
A.Both are dark silhouettes
B.The image shows colors and details, while the shadow is just an outline
C.The shadow is inverted, while the image is upright
D.Both are formed by reflecting light
- 6.
Which of these will NOT help in seeing a shadow clearly?
A.Increasing the intensity of light
B.Using a dark room with a single light source
C.Using a mirror as a screen
D.Placing the object closer to the source
- 7.
A cylindrical object is placed in three different positions. Which statement is true regarding its shadow?
A.It will always be a rectangle
B.It will always be a circle
C.It can be a circle or a rectangle depending on its position
D.It will have no shadow if placed vertically
- 8.
How does the thickness of an opaque object affect the shadow it casts on a screen far away?
A.Thicker objects always cast larger shadows.
B.Thicker objects always cast darker shadows.
C.Thickness does not significantly change the shape or size of the shadow if the front area is the same.
D.Thicker objects make the shadow edges sharper.
- 9.
If a pinhole camera is used to view a moving object, the image on the screen is seen to move in:
A.The same direction as the object
B.The opposite direction to the object
C.A direction perpendicular to the object's motion
D.No movement is visible
- 10.
What would happen to the image in a pinhole camera if the object itself was a source of light, like a glowing LED?
A.No image would be formed.
B.A clear, inverted image of the LED would be formed.
C.Only a blurry patch of light would be seen.
D.The screen would catch fire.
Download the worksheet for Light, Shadows and Reflections - Formation of Shadows and Pinhole Camera to practice offline. It includes additional chapter-level practice questions.
Mirrors and Rectilinear Propagation of Light
SubtopicMirrors and Rectilinear Propagation of Light under Light, Shadows and Reflections for Grade 6 CBSE.
Preview questions (no answers)
- 1.
If you look at the sun through a pinhole camera, you will see a:
A.Small, bright, inverted dot
B.Large, dark shadow
C.Regular circular shadow
D.Clear image of the clouds only
- 2.
What type of reflection occurs from a rough surface like a wall?
A.Regular reflection
B.Diffused reflection
C.Total reflection
D.No reflection
- 3.
Images are different from shadows because images:
A.Are always black
B.Show the colors and details of the object
C.Are formed by blocking light
D.Do not require a screen
- 4.
Which of the following is true about a shadow?
A.It is always colorful
B.It can be formed in total darkness
C.It is always formed on the opposite side of the light source
D.It shows all details of the object
- 5.
A student uses a setup with two plane mirrors, and , to reflect a beam of light toward a target as shown in the diagram. If is removed from the arrangement, which of the following describes the path of the light ray after it hits ?
A.It will continue to travel in a straight line in the direction it was reflected by .
B.It will automatically bend toward the target because light has a memory of its path.
C.It will stop moving at the exact point where was originally placed.
D.It will reflect off the air and return to the light source.
- 6.
What is required to change the path of light so that it can travel around a corner?
A.A glass slab
B.A mirror
C.A cardboard box
D.A magnifying glass
- 7.
Which of the following correctly classifies the materials: Clear Water, Tracing Paper, Wood?
A.Transparent, Translucent, Opaque
B.Opaque, Translucent, Transparent
C.Translucent, Transparent, Opaque
D.Transparent, Opaque, Translucent
- 8.
Which of these statements best describes the nature of light based on the formation of shadows?
A.Light is a form of energy that can pass through everything.
B.Light travels in straight lines and cannot pass through opaque objects.
C.Light is made of particles that bounce off shadows.
D.Light travels faster in solids than in air.
- 9.
A student places a candle at a distance of from a plane mirror. He then places a screen at the position of the image ( behind the mirror). What will he see on the screen?
A.A clear image of the candle.
B.A blurred image of the candle.
C.Nothing at all.
D.A bright patch of light.
- 10.
In a pinhole camera, why is the image inverted?
A.Because light rays from the top of the object travel in a straight line through the pinhole to the bottom of the screen.
B.Because the pinhole acts like a lens that flips the light.
C.Because light reflects off the edges of the pinhole.
D.Because the screen is translucent.
Download the worksheet for Light, Shadows and Reflections - Mirrors and Rectilinear Propagation of Light to practice offline. It includes additional chapter-level practice questions.