Which is a non luminous object?
Sun
Candle
Fire
Moon
Objects that gives out light are
Luminous objects
Non-luminous objects
Mechanical objects
Electrical objects
A book is a
Solar objects
Light travels in a
Straight line
Curved line
Vertical line
Parallel line
What are non-luminous objects?
Objects that gives off light
Objects that does not emits light
Objects that has its own energy
Objects that reflects
Which is an example of force changing the shape of an object?
Pulling of trolley bag
Pushing open a door
Stretching of rubber band
Hitting of foot ball
What are vibrations?
Fast to-and-fro movements
Fast back and forth movements
Slow back and forth movements
Slow to-and-fro movements
What is formed when an object blocks the path of light?
Reflection
Dimension
Shadow
Refraction
How can we avoid noise?
By talking loudly
By playing loud music
By speaking softly
By firing crackers
Which is a luminous living thing?
Fireflies
Crickets
Cockroaches
Houseflies
