Physics - (Air Around Us)

The Light is passed through object 'A' then 'A' is

• Translucent

• Transparent

• Opaque

Condenses and drops of water appear on the cooled surfaces.

• Oxygen

• Carbondioxide

• Water Vapour

Component of air which support burning is called

• Oxygen

• Water Vapour

• Nitrogen

The major part of air which do not support burning is called

• Oxygen

• Carbondioxide

• Nitrogen

Makes up a small component of the air around us

• Oxygen

• Carbondioxide

• Water Vapour

What is % of Nitrogen in Air

• 45%

• 78%

• 15%

What is % of Oxygen in Air

• 21%

• 85%

• 1%

Stars are

• Luminous

• Non Luminous

• Both of These

Take some water in a glass or metal container. Heat it slowly on a tripod Stand. Well before the water begins to boil, look carefully at the inner surface of the container. Do you see tiny bubbles on the Inside?

• Yes

• No

_____________is a mixture of many Gases.

• Air

• Plant

• Atmosphere