What's going on is that the water in the straw is pushed into the straw by the air pressure outside of the straw. As long as the pressure outside is able to overcome the force of gravity, the liquid will stay in the straw.
Becomes numb. Or begins to hurt
Answer:
Slit separation, ![d=1.13\times 10^{-5}\ m](https://tex.z-dn.net/?f=d%3D1.13%5Ctimes%2010%5E%7B-5%7D%5C%20m)
Explanation:
It is given that,
Wavelength of light, ![\lambda=645\ nm=645\times 10^{-9}\ m](https://tex.z-dn.net/?f=%5Clambda%3D645%5C%20nm%3D645%5Ctimes%2010%5E%7B-9%7D%5C%20m)
The angle between the central bright fringe and the second dark fringe, ![\theta=4.9^{\circ}](https://tex.z-dn.net/?f=%5Ctheta%3D4.9%5E%7B%5Ccirc%7D)
In case of double slits, the condition for dark fringe is given by :
![d\ sin\theta=(n-\dfrac{1}{2})\lambda](https://tex.z-dn.net/?f=d%5C%20sin%5Ctheta%3D%28n-%5Cdfrac%7B1%7D%7B2%7D%29%5Clambda)
n = 2
![d\ sin\theta=\dfrac{3}{2}\lambda](https://tex.z-dn.net/?f=d%5C%20sin%5Ctheta%3D%5Cdfrac%7B3%7D%7B2%7D%5Clambda)
![d=\dfrac{3\lambda}{2\ sin\theta}](https://tex.z-dn.net/?f=d%3D%5Cdfrac%7B3%5Clambda%7D%7B2%5C%20sin%5Ctheta%7D)
![d=\dfrac{3\times 645\times 10^{-9}}{2\ sin(4.9)}](https://tex.z-dn.net/?f=d%3D%5Cdfrac%7B3%5Ctimes%20645%5Ctimes%2010%5E%7B-9%7D%7D%7B2%5C%20sin%284.9%29%7D)
![d=1.13\times 10^{-5}\ m](https://tex.z-dn.net/?f=d%3D1.13%5Ctimes%2010%5E%7B-5%7D%5C%20m)
So, the slit separation is
. Hence, this is the required solution.
When a current is established in a closed conducting loop , we use ammeter. Due to this resultant potential developed detected by voltmeter.
- When current flows through loop , it gets conducted.
- Due to this Electric field is generated . This happens due to induced magnetic field.
- The free electrons were at rest until current is there , still ammeter detects some deflection.
- This deflection is due to zero current.
- Due to magnetic field , current in coil changes.
- Mathematically,
![\alpha =-\frac{d\beta }{dt}](https://tex.z-dn.net/?f=%5Calpha%20%3D-%5Cfrac%7Bd%5Cbeta%20%7D%7Bdt%7D)
- The presence of conducting loop is not necessary for having electric field.
![e= -\frac{d\beta }{dt}](https://tex.z-dn.net/?f=e%3D%20-%5Cfrac%7Bd%5Cbeta%20%7D%7Bdt%7D)
![e=-L\frac{d\beta }{dt}](https://tex.z-dn.net/?f=e%3D-L%5Cfrac%7Bd%5Cbeta%20%7D%7Bdt%7D)
![i= i0 \left \{ {{y=0.63} \atop {x=t}} \right.](https://tex.z-dn.net/?f=i%3D%20i0%20%5Cleft%20%5C%7B%20%7B%7By%3D0.63%7D%20%5Catop%20%7Bx%3Dt%7D%7D%20%5Cright.)
i=0.63 io
To know more about voltmeter-
<u>brainly.com/question/1511135</u>
#SPJ4
Answer:
momentum= mass x velocity
= 11 x 1200 =13200kgm/s