Answer:
a) Due to the characteristic that a converging lens focuses light rays from infinity and parallel to its main axis. Therefore, the lens should be placed at a distance "f" from the film, in this way it will form the image of the object placed at infinity in said film.
b) Since the converging lens produces an image of an object placed at a distance of 2f, the lens must be placed at the same distance (2f), so that this object that is placed at a distance of 2f is focused.
Explanation:
Any non- metal group 13-17
Explanation:
An element from group 2 will form ionic bonds with any non - metal group 13 - 17.
An ionic bond usually forms between metals and non-metals.
- In the main group on the periodic table, metals occupy the first two groups.
- Ionic bonds are formed between two atoms with large electronegativity differences.
- These are simply metals and non-metals.
- The bond forms when metals donates their valence electrons to the non-metals.
Learn more:
Ionic bond brainly.com/question/10826758
#learnwithBrainly
Answer: Seismic waves arrive at a seismograph in the order of fastest to slowest:primary waves, secondary waves, surface waves.
Explanation:
I don’t know but I hope someone helps you
Answer:liquid water
Explanation:it turns into liquid water when it rains
