In multimode step index fibre the refractive index of core and cladding is____________?

Related Mcqs:

If an object is placed away from 2f of a converging lens then the image will be_______________?

A. real and erect B. virtual and erect C. real and inverted D. virtual...

If a convex lens of large aperture fails to converge the light rays incident on it to a single point, it is said to suffer from______________?

A. chromatic aberration B. spherical aberration C. both spherical and chromatic D. distortion...

The least distance of distinct vision for a normal eye is_______________?

A. 15 cm B. 25 cm C. 30 cm D. 40 cm...

In optic fiber transmission system _____________ are used regenerate the dim light signal?

A. Diodes B. Repeaters C. Laser D. Transformer...

Magnification of the astronomical telescope is_____________?

A. fo+fe B. fo/fe C. fe/fo D. (1+fo/fe)L/fo...