Which must be included when drawing ray diagrams? check all that apply. focal point lens focal length three easy rays axis?

For drawing the ray diagram three rays, focal length must included.

Explanation:

for drawing the ray diagram three rays, focal length must included.

for drawing ray diagram three rules of refraction must be followed. Steps needed to draw the ray diagram are.

1) three rays are incident from top edge of objects towards the lens

2)  these incident rays are reflected according to principle of three rules of refraction for any given converging lens

3) mark the image point after refracted rays intersect

4) repeat the same process for base of given object to get the desire image

the answer is b for brother

after a more than a decade and a half of combating al qaeda (aq) in afghanistan and pakistan,

the united states faces a diverse array of threats from al qaeda affiliates in the middle east and

africa. while senior al qaeda figures reportedly remain based in pakistan, the network includes

a number of affiliates across the middle east and africa including al qaeda in the arabian

peninsula (aqap), al qaeda in the islamic maghreb (aqim), and al shabaab. al qaeda also

retains a small but possibly growing presence in afghanistan. u.s. officials have stated that al

qaeda still maintains a foothold in syria through its ties to hay’at tahrir al sham (formerly

known as the nusra front), though the exact nature of that relationship may be evolving. this

report examines the threat posed by al qaeda affiliates in the middle east and africa as described

by u.s. officials and outside observers, as well as the u.s. approach to date in responding to these

threats. this was all i could find hope this : )