Physics Light and Optics MCQs

31. Question

The resolving power of a telescope with lens of diameter 1.22 m for a wavelength of 500 nm is




Answer
32. Question

The wavelength of light used in an optical instrument are λ1=400 nm and λ2=500 nm. The ratio of their respective resolving powers corresponding to λ1 and λ2 will be




Answer
33. Question

The resolution limit of the eye is 1 minute. At a distance of x km from the eye, two persons stand with a lateral separation of 3 km. For the two persons to be just resolved by the naked eye, x should be




Answer
34. Question

The criterion of resolution of optical instruments was given by




Answer
35. Question

The resolving power of a telescope depends on




Answer

Leave a Reply