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A Michelson interferometer is illuminated with monochromatic light. When one of the mirrors is moved through a distance of 25.3 μm, 92 fringes pass through the cross-wire. The wavelength of the monochromatic light is

A Michelson interferometer is illuminated with monochromatic light. When one of the mirrors is moved through a distance of 25.3 μm, 92 fringes pass through the cross-wire. The wavelength of the monochromatic light is Correct Answer 550 nm

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Which of the following statements is/are correct? Statements: (1) Convex mirrors are used as rearview mirrors in cars, motorcycles, scooters etc. (2) Concave mirrors are used by doctors to focus light inside the ear or mouth for medical examination. (3) Convex mirrors are used by dentists to see enlarged images of patients’ teeth. (4) Concave mirrors are used for shaving purpose
একটি ধাতব তলে λ তরঙ্গদৈর্ঘ্যের একবর্ণী আলোকরশ্মি আপতিত হলে ফটো-ইলেক্ট্রন নির্গত হয় এবং এক্ষেত্রে বিভবের মান 3Vo একই তলে যখন 2λতরঙ্গদৈর্ঘ্যের একবর্ণী আলো আপতিত হয়, তখন নিবৃত্তি বিভবের মান Vol ফটো-ইলেক্ট্রন নির্গত হওয়ার জন্য ঐ তলটির সূচন তরঙ্গদৈর্ঘ্যের মান নির্ণয় কর।(A monochromatic light of wavelength λ is incident on a metallic surface then ejects photo-electron and the value of stopping potential is 3Vo. When the same surface is illuminated by a light of wavelength 2λ., the stopping potential becomes Vo. Calculate the threshold wavelength for this surface to eject photo electrons.)
In the question, below are three statements followed by four conclusions numbered I, II, III, and IV. You have to consider the statements to be true even if it seems to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements. Statements: I. Some Mirrors are not Glasses. II. All Glasses are Strong. III. Some Strong are Fragile.  Conclusions: I. Some Mirrors may be glasses. II. Some Glasses are Fragile. III. All Mirrors are Strong. IV. Some Mirrors are Fragile. 
When a piece of metal is illuminated by a monochromatic light of frequency ν, then stopping potential is Vs. When same surface is illuminated by light of frequency 2ν, then stopping potential becomes 3Vs. The value of threshold frequency for photoelectric emission will be
In Michelson interferometer, the fringes of equal inclination produced are called as-
In a Fabry-Perot interferometer, the circular fringes formed are referred to as fringes of
In Michelson’s interferometer, the frequency of the detector output can be determined by translating the _________ of movable mirror and the ___________ of monochromatic radiation.
In Michelson's interferometer, the frequency of the detector output can be determined by translating the . . . . . . . . of movable mirror and the . . . . . . . . of monochromatic radiation.
When a thin plate of refractive index 1.5 is placed in the path of one of interfering beams of Michaelson Interferometer, a shift of 30 fringes is observed. If the thickness of plate is 0.018 mm, the wavelength of the used light is ____
When a thin plate of refractive index 1.5 is placed in the path of one of interfering beams of Michaelson Interferometer, a shift of 30 fringes is observed. If the thickness of plate is 0.018 mm, the wavelength of the used light is ___________