Answer:
It's probably the Redshift and Blueshift
Explanation:
The light shifting towards shorter or longer wavelengths as objects in space (stars or galaxies) move closer or farther away from us. This phenomenon is known as the Redshifts and Blueshifts. The concept indicates us that the Universe is expanding.
Hope this helps you!
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<u>Conductivity</u> is the property of matter in which a substance can transfer heat or electricity.
<h3>
<u>Additional</u><u> </u><u>information:-</u><u> </u></h3>
Matter : Anything which occupies space and has mass is called matter.
<u>Chemical classifications</u>
- Pure Substances ( made of one kind of substance )
- Impure Substances ( mixture )
<u>Physical</u><u> </u><u>classifications</u><u> </u>
- Plasma ( made of ions and free electrons )
- BEC ( Bose Einstein Condensate )
- Fermionic Condensate ( It discovered in 2003 )
Answer:
Sound wave X amplitude is greater than 'A' and its frequency is lesser than
'f'
Explanation:
The pitch of a sound is dictated by the frequency of the sound wave, while the loudness is dictated by the amplitude.
A high pitch sound corresponds to a high frequency and a low pitch sound corresponds to a low frequency.
The larger the amplitude of the waves, the louder the sound and vice-versa.
From the question,
Sound wave W has amplitude ‘A' and frequency 'f' and
Sound wave X is louder and lower in pitch than sound wave W.
Since sound wave X is louder, this means its amplitude is greater than 'A'.
Also, since sound wave X is lower in pitch, this means its frequency is lesser than 'f'.
The answer is D.
Hope this helps and have a good day :D
