Wave OpticsHard
Question
Diameter of a circular disc is 1 cm. The disc is placed 1 metre from a light source of λ = 6000
. If a screen is placed 2 metre away from the disc. Then the number of half period zones covered by the disc will be :
. If a screen is placed 2 metre away from the disc. Then the number of half period zones covered by the disc will be :Options
A.21
B.25
C.42
D.30
More Wave Optics Questions
White light is used to illuminate two slits in a Young′s doubles slit experiment. The separation between the slit ...A train moving at a speed of 220 ms-1 towards a stationary object, emits a sound of frequency 1000Hz. Some of the sound ...In the above question the distance of 4th dark fringe from first dark fringe will be :...In Fresnel′′s biprism experiment, separation between the slits is halved and the distance between screen and...In Young′s experiment, if Xmr and Xmv denotes the distances of mth red and violet fringe from the central fringe. ...