Fill in the blanks:-

(1). Intensity of bright fringe is ……………………

(2) Intensity of dark fringe is ……………………

(3) Fringe width………………with increase in wavelength. (increases /decreases)

(4) Fringe width………………with increase in separation between slits and screen. (increases /decreases)

(5) Fringe width………………………………with increase in separation between slits (increases /decreases)

(6)If whole setup of YDSE is shifted from air to water its fringe width will………………..(increase /decrease)

(7)Fringes of red color light in YDSE are ………………….than fringes for violet color.(wider/narrower)

(8) Phase difference for waves in constructive interference is …………..

(9) Phase difference for waves in destructive interference is …………..

(10) Dark fringe is due to ………………………. Interference.( destructive/ constructive)

Answers:-