__________ is a luminous object.

• Moon

• Mirror

• Chair

• Candle

A dark patch formed when the path of the light is blocked by an object is called _____________

Choose the sound that is unpleasant to our ears

• 
• 
• 
• 

Sounds that are unpleasant to our ears

Shadows formed with the help of sunlight are shortest at __________

• Morning

• Night

• Noon

• Evening

At night shadows are formed by ____

• bulb

• street light

• candle

• all of these

Light always travel in a ___________ path.

• curved

• straight

Sun is a ___________ object

Moon is a _________ object.

The size of the shadow is ___________ during morning and evening.

• shorter

• longest

• same

• shortest