Wave Optics - Online Test
Q1. The angle of incidence at which the reflected beam is fully polarized is called
Answer : Option C
Explaination / Solution:
No Explaination.
Q2. What speed should a galaxy move with respect to us so that the sodium line at 589.0 nm is observed at 589.6 nm?
Answer : Option C
Explaination / Solution:
No Explaination.
Q3. Two slits are made one millimetre apart and the screen is placed one metre away. What is the fringe separation when bluegreen light of wavelength 500 nm is used?
Answer : Option B
Explaination / Solution:
No Explaination.
Q4. A viewing screen is separated from a double-slit source by 1.2 m. The distance between the two slits is 0.030 mm. The second-order bright fringe m =2 is 4.5 cm from the center line. Wavelength of the light is
Answer : Option A
Explaination / Solution:
No Explaination.
Q5. A viewing screen is separated from a double-slit source by 1.2 m. The distance between the two slits is 0.030 mm. The second-order bright fringe m =2 is 4.5 cm from the center line. Distance between adjacent bright fringes is
Answer : Option D
Explaination / Solution:
No Explaination.
Q6. A light source emits visible light of two wavelengths: λ = 430 nm and λ' = 510 nm. The source is used in a double-slit interference experiment in which L = 1.5 m and d = 0.025 mm. separation distance between the third order bright fringes. is
Answer : Option B
Explaination / Solution:
No Explaination.
Q7. In a two-slit interference experiment in which the slits are 0.200 mm apart and the screen is 1.00 m from the slits. The m = 3 bright fringe is 9.49 mm from the central fringe. Wavelength of the light is
Answer : Option A
Explaination / Solution:
No Explaination.
Q8. Two slits are made one millimetre apart and the screen is placed one metre away. Blue green light of wavelength 500 nm. is used . what should the width of each slit be to obtain 10 maxima of the double slit pattern within the central maximum of the single slit pattern
Answer : Option C
Explaination / Solution:
No Explaination.
Q9.
Assume that light of wavelength 6000 is coming from a star. What is the limit of resolution of a telescope whose objective has a diameter of 100 inch?
Answer : Option C
Explaination / Solution:
No Explaination.
Q10. For what distance is ray optics a good approximation when the aperture is 3 mm wide and the wavelength is 500 nm?
Answer : Option C
Explaination / Solution:
No Explaination.
