A 14-mm tall postage stamp is 4.0 mm from a converging lens. If the image of the

Question

A 14-mm tall postage stamp is 4.0 mm from a converging lens. If the image of the stamp is 4.0 mm tall, how far is it from the lens 14 mm 8.7 mm 1.4 mm 1.1 mm Two light sources are said to be coherent if they are of the same frequency. of the same frequency, and maintain a constant phase difference. of the same amplitude, and maintain a constant phase difference. of the same frequency and amplitude. In a double-slit experiment, it is observed that the distance between adjacent maxima on a remote screen is 1.0 cm. What happens to the distance between adjacent maxima when the slit separation is cut in half It increases to 2.0 cm. It increases to 4.0 cm. It decreases to 0.50 cm. It decreases to 0.25 cm. None of these choices are correct. A single-slit diffraction pattern is formed on a distant screen. Assuming the angles involved are small, by what factor will the w idth of the central bright spot on the screen change if the wavelength of the illuminating light is doubled It will be cut to one-quarter its original size. It will be cut in half. It will double. It will become four times as large. It will become eight times as large. Laser light sent through a double slit produces an interference patter on a screen 3.00 m from the slits. If the second order maximum occurs at an angle of 12.0degree, at what angle does the eighth order maximum occur No eighth order maximum occurs. 48.0 degree 56.3 degree Not enough information is given.

Explanation / Answer

24)

Image distance/ Object distance = - Image height/ Object height

Image distance = - (4mm/14mm) * (-4mm) = 1.14 mm

Answer D) 1.1 mm

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