Two speakers both emit sound of frequency 320 Hz, and are in phase. A receiver sits 2.3 m from one speaker, and 2.9 m from the o
1 answer:
You might be interested in
The wavelength of the light beam required to turn back all the ejected electrons is 497 nm which is option (b).
- Work function is a material property defined as the minimum amount of energy required to infinitely remove electrons from the surface of a particular solid.
- The potential difference required to support all emitted electrons is called the stopping potential which is given by
.....(1)
- where
is the stopping potential and e is the charge of the electron given by
.
It is given that work function (Ф) of monochromatic light is 2.50 eV.
Einstein photoelectric equation is given by:
....(2)
where K.E(max) is the maximum kinetic energy.
Substituting (1) into (2) , we get
As we know that ....(3)
where Speed of light, and Planck's constant ,
From equation (3) , we get
Learn about more einstein photoelectric equation here:
#SPJ4
- Height=h=500m
- Acceleration=g=10m/s^2
- Initial velocity=u=0
- Speed of sound=c=340m/s
- TIME TAKEN BY STONE TO HIT WATER=t
- Time taken by sound to hear back=T
Now
Now
Total time:-