Answer:
The sun rays will be focused at the same distance from the mirror.
Explanation:
Laws of reflection do not depend on the refractive index n any form. Hence, the sun’s rays will be focused the same distance from the mirror.
Answer:
v = 108 m/s.
Explanation:
Given that,
The position of a particle moving on a straight line is given by :
![X =12 + 18t + 9t^2](https://tex.z-dn.net/?f=X%20%3D12%20%2B%2018t%20%2B%209t%5E2)
We need to find the instantaneous velocity at t=5s.
Velocity, ![v=\dfrac{dX}{dt}](https://tex.z-dn.net/?f=v%3D%5Cdfrac%7BdX%7D%7Bdt%7D)
So,
![v=\dfrac{d(12 + 18t + 9t^2)}{dt}\\\\=18+18t](https://tex.z-dn.net/?f=v%3D%5Cdfrac%7Bd%2812%20%2B%2018t%20%2B%209t%5E2%29%7D%7Bdt%7D%5C%5C%5C%5C%3D18%2B18t)
Instantaneous velocity at t = 5 s will be :
v = 18+18t
v = 18+18(5)
= 18 + 90
= 108 m/s
So, the instantaneous veloctiy at t=5s is 108 m/s.
Answer:
here are no results for Did you guys know that saying ''Reeeee" is disrespectful and offensive? Ill explain: Because “Reeee” is used to mock people on the autism spectrum, supposedly mimicking a noise that someone on the spectrum might make
Explanation:
Answer the term solenoid refers to a long, thin loop of wire, often wrapped around a metallic core, which produces a magnetic field when an electric current is passed through it. Solenoids are important because they can create controlled magnetic fields and can be used as electromagnets
I hope it is helpful
Answer:
Population inversion, in physics, the redistribution of atomic energy levels that takes place in a system so that laser action can occur. Although absorption and emission of energy is a continuous process, the statistical distribution (population) of atoms in the various energy states is constant. ...
laser inversion is photon that can stimulate the production of other photons of exactly the same wavelength because of stimulated emission of radiation.
Explanation: