Answer:
The impression of the image on the retina lasts for about 1/16th of a second after the removal of the object. If a burning stick of incense is revolved at a rate of more than sixteen revolutions per second, we see a circle of red light due to persistence of vision.
Explanation:
Answer:
<h2>

</h2>
Explanation:
<u>Rule</u><u>:</u>
<h3>
Speed= Distance/ Time</h3>
<em>Hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>!</em><em> </em>
Answer:
This represents radiation in ultra-violet region .
Explanation:
Energy of the orbit where n = 3 is given as follows

= -1.511 eV
Energy of the orbit where n = 1 is given as follows

= 13.6 eV
Difference of [tex]E_3 and [tex]E_1 = - 1.511+ 13.6
= 12.089 eV.
The wavelength of light having this energy in nm is given by the expression as follows
Wavelength in nm = 1244 / energy in eV
= 1244 / 12.089
= 102.90 nm
This represents radiation in ultra-violet region .
Explanation:
EE = ½ kx²
EE = ½ (0.55 N/m) (0.15 m)²
EE = 0.62 J