Hamad Optical Instruments 15/06/2021 A. real B. virtual C. positive D. negative 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...
Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website Save my name, email, and website in this browser for the next time I comment. Δ
Recent Comments