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Total questions: 10
Worksheet time: 6mins
What is the difference between reflection and refraction?
Reflection is the bouncing back of light; refraction is the bending of light.
Reflection and refraction are the same phenomenon.
Reflection is the bending of light; refraction is the bouncing back of light.
Reflection occurs only in water; refraction occurs in air.
What is a prism used for?
To enhance the brightness of colors.
To measure the temperature of liquids.
To create a solid shape for storage.
To refract light and separate it into colors.
What is the source of natural light?
The moon
Artificial lights
The sun
Fireflies
What is the role of light in photosynthesis?
Light is only needed for plant growth, not photosynthesis.
Light is used to absorb nutrients from the soil.
Light is a byproduct of photosynthesis.
Light is essential for photosynthesis as it provides the energy required for the conversion of carbon dioxide and water into glucose.
An example of luminous object is-
Bed
Chair
Books
Objects that allow only a small amount of light to pass through them are called as-
Opaque Object
Transparent Object
Translucent Object
None of these
The main sources of light on the Earth can be broadly classified into (a)
What is the process called when light bounces off a surface?
Diffraction
Refraction
Absorption
Reflection
What do we call the dark area that forms when an object blocks light?
shadow
glare
illumination
reflection
How does light travel?
Light travels only in straight lines.
Light travels in waves and particles (photons) at a speed of about 299,792 km/s in a vacuum.
Light is made up of solid particles that do not move.
Light travels faster in water than in a vacuum.
