The image produced by a concave lens (diverging) is always virtual, inverted, an
ID: 1569186 • Letter: T
Question
The image produced by a concave lens (diverging) is always virtual, inverted, and reduced. virtual, invented, and magnified. virtual, upright, and reduced. virtual, upright, and magnified. virtual, upright, and the same size. An interference pattern is produced on a screen a double slit setup. If a light source of 560 nm is used and the 1.3 m from distance between adjacent bright maxima is 5.3 times10^3 m, what is the slit separation? 1.4 times 10^2 m, 1.4 times 10^3 m 1.4 times 10^4 m. 1.4 times 10^5 m, 1.4 times 10^6 m. Light of wavelength 610 nm is incident on a slit of width 0.10 mm and the diffraction pattern is produced on a screen 1.5 m from the slit. What is the width of the central maximum? (1 nm = 10^2 m) 0.46 cm. 0.92 cm. 1.83 cm, 1.38 cm, 2.30 cm.Explanation / Answer
11) (c)Virtual, upright and reduced.
12)(c)d = 1.4 x 10^-4 m
D = 1.3 m ; lambda = 560 nm ; y = 5.3 x 10^-3 m
We know that,
y = m lambda D/d
d = m lambda D/y
d = 560 x 10^-9 x 1.3/5.3 x 10^-3 = 1.4 x 10^-4 m
Hence, (c)d = 1.4 x 10^-4 m
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