Question

Physics assessment

1. 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 f and 2f(1)

2. Convex lens forms a real diminished point size image at focus then the position of the object is at
a.focus b.infinity c.at 2f d.between f and 2f.(1)

Write true or false
3. The convex lens always gives small virtual image.(1)

4.draw a ray diagram to show the image formed by a convex lens when the object is placed between f and 2f (2)​

Answer 1

Answer:

1) at 2f(twice the focal length)

2)when the object is at" infinity "then convex lens focus real ,highly diminished, real and inverted image.

3)False

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