Question

How to know in experiments of concave mirror and convex lens where to move screen or lens

Answer 1

$\huge\mathfrak\red{Hello,}$

$\huge\underline{Answer:}$

When you put lenses together, their power actually adds. ... The image is larger than the object as long as the object is between 1 and 2 focal lengths away from the lens. Now, you have the concave lens next to the convex lens.

$Hope\:it\:helps!$

Regards,

$\huge\mathfrak\purple{Aaravxxx}$