1.

Which of the following uses lens and mirrors for focusing?(a) Refractive(b) Reflecting(c) Catadioptric(d) OrthogonalThe question was posed to me by my school principal while I was bunking the class.My doubt stems from Stellar Sensor Design in division Celestial Navigation, Doppler and Altimeter Radars of Avionics

Answer»

Correct answer is (c) Catadioptric

Explanation: TELESCOPES are of three types: refractive, which uses lenses as their primary FOCUSING ELEMENTS, reflective, which uses a CURVED mirror for focusing, and catadioptric, which mix mirror and lens systems.



Discussion

No Comment Found

Related InterviewSolutions