The power of a concave lens is_______________?

Related Mcqs:

For normal adjustment, length of astronomical telescope is______________?

A. fo + fe B. fo – fe C. fo / fe D. fe / fo...

Two convex lenses of equal focal length f are placed in contact the resultant focal length of the combination is______________?

A. zero B. focus C. 2 f D. f/2...

In optic fiber transmission the repeater are separated through a distance of __________ km in newer system?

A. 300km B. 200km C. 100km D. 20km...

Michelson devised the formula to calculate the speed of light_______________?

A. C = 4fd B. C = 8fd C. C = 16fd D. C = 5/2fd...

A point where the incident parallel rays of light converge or appear to diverge after passing through a lens is called______________?

A. center of curvature B. focus C. optical center D. aperture...