A single-slit diffraction pattern is formed on a distant screen. Assuming the angles involved are small, by what factor will the width of the central bright spot on the screen change if the wavelength is doubled?
A) It will be cut to one-quarter its original size.
B) It will be cut in half.
C) It will double.
D) It will become four times as large.
E) It will become eight times as large.
C
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Indicate whether the statement is true or false
When we say that a material sample has reached its elastic limit, we mean that
A) if any further stress is applied, the sample will break. B) if any further stress is applied, the deformation of the sample will not be reversible. C) the deformation no longer follows Hooke's law. D) the material will continue deforming with no further additional stress. E) None of the other choices is correct.
This figure shows that the image of a candle inside the focal point of a concave mirror is virtual, erect, and magnified. Where would the candle's image be if it were placed exactly at the center of curvature, point C?
a. A real inverted image is formed at an infinite distance to the left and infinite in size. b. A virtual erect image is formed at an infinite distance to the right and infinite in size. c. The inverted image is formed with the same size as the object, also located at the focal point, but on the opposite size of the optical axis.