Answer:
A hygroscopic substance is one that readily attracts water from its surroundings, through either absorption or adsorption.
Explanation:
A hygroscopic substance is one that readily attracts water from its surroundings, through either absorption or adsorption.
Answer:
(a) Frequency will be equal to
(b) Wavelength will be equal to
Explanation:
Velocity of light
(A) We have given wavelength of light
We have to find frequency corresponding to this wavelength
We know that velocity of light is equal to
(b) We have given frequency of vibration
We have to find wavelength corresponding to this frequency
We know that velocity of light is equal to
Answer:
A
Explanation:
The kinetic energy decreases to half its original value.
<span>The loudness of the sound increases gradually as the air is slowly introduced in to the jar. This is because sound needs a physical medium and in a vacuum there is none. The air provides that medium and as it is introduced, the transfer of sound energy increases</span>
When gasoline burns in a car engine, some of the chemical energy in the gasoline is converted into heat. The heat is converted into mechanical energy. The mechanical energy moves the car or vehicle.