An object is placed in front of a concave lens, beyond it's focal point. what can you say about images formed by this concave lens? a. they are always virtual. b. they always form behind the lens. c. they are always real. d. they are always larger than the object.

The correct answer to the question is : A) The are always virtual.

EXPLANATION :

As per the question, the object is placed in front of a concave lens, and the object is placed beyond the focal point.

We know that the image formed by the concave lens is always virtual,erect and diminished irrespective of its position i.e the size of image is always smaller than the object.

The virtual image is appeared to be formed in front of the concave lens.

Hence, the correct answer of this question is that the images are always virtual.

d. air pressure decreases as altitude increases.