+91-8076753736 support@wiredfaculty.com

Sponsor Area

Wave Optics

Question

Wired Faculty App

The angular resolution of a 10 cm diameter telescope at a wave length of 5000 A is of the order of

10^-4 rad
10^-6 rad
10⁶ rad
10^-2 rad

Solution

B.

10^-6 rad

Some More Questions From Wave Optics Chapter

Let us list some of the factors which could possibly influence the speed of wave propagation:
(i) nature of source.
(ii) direction of propagation.
(iii) motion of source and/or observer.
(iv) wave length.
(v) intensity of the wave.
On which of these factors, if any, does
(a) the speed of light in vacuum,
(b) the speed of light in a medium (say, the glass or water) depend?

For sound waves, the Doppler formula for frequency shift differs slightly between the two situations:
(i) source at rest; observer moving, and
(ii) source moving; observer at rest.
The exact Doppler formulas for the case of light wave in vacuum, are however, strictly identical for these situations. Explain why this should be so. Would you expect the formulas to be strictly identical for the two situations in case of light travelling in a medium?

Mock Test Series

Mock Test Series

NCERT Sample Papers

Entrance Exams Preparation