A diver under water is looking at the overhead Sun through a diffraction grating that has 5000 lines/cm. What is the highest complete spectrum order that can be seen by the diver?
Answer to relevant Questions(a) If the wavelength used in a double-slit experiment is decreased, the distance between adjacent maxima will (1) increase, (2) decrease, (3) remain the same. Explain. (b) If the separation between the two slits is 0.20 mm ...A reflecting telescope with a large objective mirror can collect more light from stars than a reflecting telescope with a smaller objective mirror. What other advantage is gained with a large mirror? Explain. What are the powers of (a) A converging lens of focal length 20 cm and (b) A diverging lens of focal length – 50cm? A middle-aged man starts to wear eyeglasses with lenses of +2.0 D that allow him to read a book held as close as 25 cm. Several years later, he finds that he must hold a book no closer than 33 cm to read it clearly with the ...A detective wants to achieve maximum magnification when looking at a fingerprint with a magnifying glass. (a) He should use a lens with (1) a long focal length, (2) a short focal length, (3) a larger size. Explain. (b) If ...
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