EASY
MHT-CET
IMPORTANT
Earn 100

In Young's double-slit experiment, if the separation between slits is halved and the distance between the slit and screen is doubled, then the fringe width will become

100% studentsanswered this correctly

Important Questions on Interference and Diffraction

MEDIUM
MHT-CET
IMPORTANT
Physics Crash Course MHT-CET>Chapter 21 - Interference and Diffraction>Exercise 1>Q 43

If a thin membrane of thickness t and refractive index μ is introduced in the path of one wave out of the two waves producing interference, then the whole interference pattern will be shifted by a distance-

EASY
MHT-CET
IMPORTANT
Physics Crash Course MHT-CET>Chapter 21 - Interference and Diffraction>Exercise 1>Q 46
In Young's double-slit arrangement, water is filled in the space between screen and slits. Then:
MEDIUM
MHT-CET
IMPORTANT
Physics Crash Course MHT-CET>Chapter 21 - Interference and Diffraction>Exercise 1>Q 47
In Young's double-slit experiment, the wavelength of red light is 7800 Å and that of blue light is 5200 Å. The value of n for which nth bright band due to red light coincides with (n+1)th the  bright band due to blue light is:
MEDIUM
MHT-CET
IMPORTANT
Physics Crash Course MHT-CET>Chapter 21 - Interference and Diffraction>Exercise 1>Q 48
In Young's double-slit experiment, let A and B be the two slits. A thin film of thickness t and refractive index μ is placed in front of A. Let β= Fringe width. The central maximum will shift:
EASY
MHT-CET
IMPORTANT
Physics Crash Course MHT-CET>Chapter 21 - Interference and Diffraction>Exercise 1>Q 49
In young's double slit experiment, the distance between two slits is made three times then the fringe width will become-
MEDIUM
MHT-CET
IMPORTANT
Physics Crash Course MHT-CET>Chapter 21 - Interference and Diffraction>Exercise 1>Q 50
In the ideal double-slit experiment, when a glass-plate (refractive index 1.5) of thickness t is introduced in the path of one of the interfering beams (wavelength  λ ), the intensity at the position where the central maximum occurred previously remains unchanged. The minimum thickness of the glass plate is
EASY
MHT-CET
IMPORTANT
Physics Crash Course MHT-CET>Chapter 21 - Interference and Diffraction>Exercise 1>Q 51
In a Young's double-slit experiment the angular width of a fringe formed on a distant screen is 1°. The wavelength fo the light used is 6280 Å. What is the distance between the two coherent sources?
MEDIUM
MHT-CET
IMPORTANT
Physics Crash Course MHT-CET>Chapter 21 - Interference and Diffraction>Exercise 1>Q 52
If the distance between the first maxima and fifth minima of a double slit pattern is 7 mm and the slits are separated by 0.15 mm with the screen 50 cm. from the slits, then find the wavelength of the light used.