A tube light is a
Luminous object
Non-luminous object
Mechanical object
Solar object
Which of the following statement is false?
A book is a non-luminous object
Music is a pleasant sound
We should blow horns unnecessarily
Force can change the shape of an object
Which is a non luminous object?
Sun
Candle
Fire
Moon
Which is a luminous living thing?
Fireflies
Crickets
Cockroaches
Houseflies
Light travels in a
Straight line
Curved line
Vertical line
Parallel line
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
Which is the natural force that move objects?
Light
Heat
Wind
Sound
What are vibrations?
Fast to-and-fro movements
Fast back and forth movements
Slow back and forth movements
Slow to-and-fro movements
We can see things only when there is
Reflection
Dimension
Shadow
How can we avoid noise?
By talking loudly
By playing loud music
By speaking softly
By firing crackers