Answer:
Its focal length is positive
Explanation:
A concave mirror is shown in attached figure. The distance from the pole to the focus of the mirror is called its focal length. Spherical mirrors are a part of a sphere.
As per conventions, we know that the axis opposite to x axis is taken as negative.
So, it is clear that the focal length of spherical concave mirror is negative.
Hence, the incorrect option is (c) " its focal length is positive".
Answer : Option D) A dropped wallet is kicked around the floor of a busy train station.
Explanation : The description that best suits the model for the energy transfer that occurs in the radiative zone is -
<h3>A dropped wallet is kicked around the floor of a busy train station.</h3>
As in the radiation zone, which is also called as radiative zone or radiative region in the layer of a star's interior where energy is primarily transported toward the exterior by means of radiative diffusion and thermal conduction. This can be correlated with the example of a dropped wallet in a busy train station as the wallet would be kicked by many people who are in a hurry to travel, this represents the radiative diffusion. So, every time the wallet is being kicked by someone the energy is getting transformed.
Answer: C. Inherited traits carry the instructions for individual genes.
Explanation: bejewels I know stuff. ☆ - ~ hope this helps
