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Q1: Light of wavelength 720 nm is shone through a double slit. The angle that locates...

Q1: Light of wavelength 720 nm is shone through a double slit. The angle that locates the second dark fringe is 10.3 degrees. Calculate the angle that locates the first dark fringe.

Q2: A woman stands 2.5 meters from a convex mirror with focal length -1.4 meters. If she is 1.7 meters tall, calculate the height of her reflection.

Q3: An object is placed 6 cm away from a mirror of focal length 11 cm. Calculate the image distance.

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