Reflection, refraction, lenses, telescopes, interference, diffraction and polarisation.
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Q1 · Optics · MEDIUM
In a Young's double slit experiment, the distance between slits is 0.5 mm and the screen is placed 2 m away. If the wavelength of light used is 600 nm, what is the fringe width?
Q2 · Optics · MEDIUM
Light of wavelength 600 nm passes through two narrow slits separated by 0.3 mm and produces an interference pattern on a screen 2 m away. The fringe width is:
Q3 · Optics · EASY
A convex lens of focal length 20 cm forms an image at a distance of 60 cm from the lens. The object distance is: