The wavelength of visible light lies between MCQ with Answer and Explanation

Explanation:
Endoscopes consist of bundles of flexible optical fibers. Light introduced at one end is trapped inside the fiber core because it repeatedly strikes the boundary at an angle greater than the critical angle. This Total Internal Reflection allows light and visual images to be transmitted through complex, curving paths inside the body.

Explanation:
Work output = 500×2=1000 J. Work input = output/eff = 1000/0.8=1250 J. Effort = Work input / distance = 1250/10 = 125 N.

Explanation:
Least count = 1 MSD - 1 VSD = 0.1 - 0.09 = 0.01 cm (common).