Question

2. Where should
an object be placed so that
a real and inverted image of same size is
obtained by a convex lens
a)f
b) 2f
c) infinity
d) between fand 2f

3. A small bulb is placed at the principal focus
of a convex lens. When the bulb is switched
on, the lens will produce
a) a convergent beam of light
b) a divergent beam of light
c) a parallel beam of light
d) a coloured beam of light​

Answer 1

Answer:

2. to f

3. a parallel beam of light