A Choose... convex concave lens is used to converge light.

2 answers:

4 0

Answer: A convex lens is used to converge ligtht.

Explanation:

A concave lens is a lens that is thicker on the ends than in the middle. As consequence of this, a concave lens diverges (separate) the rays of light. A concave lens is also called diverging lens.

A convex lens is is thicker in the middle than on the ends. As consequence of this, a convex lense converge the parallel rays that pass through it. A convex lens is also called converging lens.

goldfiish [28.3K]3 years ago

4 0

The answer would be :
A convex lens is used to converge ligtht.

A convex lens is is thicker in the middle than on the ends. As consequence of this it wl reflect light but as the object go near to the mirror, it would be inverted and virtual. So you eill expect an inverted image of you.

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Write a balanced half-cell equation for the reaction occurring at the anode. ignore phases in the reaction.

r-ruslan [8.4K]

The balanced half-cell equation for the reaction occurring at the anode is H2 ---> 2H(+) + 2e(-)

Explanation:

The balanced half-cell equation taking place at the anode is explained below
The product produced in the reaction in the fuel cell is water.
H2 ---> 2H(+) + 2e(-)
In the above reaction, the oxidation state of hydrogen switches from 0 to +1.
It is becoming oxidized by delivering two electrons at the anode.
In the fuel cell, hydrogen molecules get oxidized to hydronium ions.Thus half-reaction is the oxidation reaction.