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प्रश्न
Fill in the following blank with suitable words :
The state of matter called ........................ makes a fluorescent tube (or neon sign bulb) to glow.
उत्तर
The state of matter called plasma makes a fluorescent tube (or neon sign bulb) to glow.
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संबंधित प्रश्न
Suggest a method to liquefy atmospheric gases.
Convert the temperature of 373° C to the Kelvin scale.
Why is solid carbon dioxide known as dry ice ?
Define 'boiling point' of a substance ? What is the boiling point of water ?
When heat is constantly supplied by a gas burner with small flame to melt ice, then the temperature of ice during melting :
State which of the following statement is true or false. If false write the correct statement.
Atoms/molecules in gases move only about their own positions.
Fill in the blanks with the correct word/s from the bracket.
Ice on absorption of heat converts to ‘X’ a process called ____ [vaporization / melting]. ‘X’ changes to water vapour on ____ [heating / cooling]. Water vapour changes back to ‘X’ on ____ [freezing / condensation]. The constant temperature at which ice changes into ‘X’ is called its ____ [fusion point / melting point / boiling point].
What is it made from? Why?
A sickle to cut sugarcane.
What will happen if....? And why?
An axe is made of rubber.
Fill in the blank with the correct word of the statement given below:
Sublimation is _______ a change of state of matter.
