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level: 1/2/2021

Questions and Answers List

level questions: 1/2/2021

Question	Answer
A right circular cylinder with a radius of 2.3 cm and a height of 1.4 cm has a total surface area of: A. 1.7 × 10−3 m2 B. 3.2 × 10−3 m2 C. 2.0 × 10−3 m3 D. 5.3 × 10−3 m2 E. 7.4 × 10−3 m2	A Chapter 1: MEASUREMENT
Two identical but separate strings, with the same tension, carry sinusoidal waves with the same frequency. Wave A has an amplitude that is twice that of wave B and transmits energy at a rate that is that of wave B. A. half B. twice C. one-fourth D. four times E. eight times	D Chapter 16: WAVES – I
A concave spherical mirror has a focal length of 12 cm. If an erect object is placed 6 cm in front of it: A. the magnification is 2 and the image is erect B. the magnification is 2 and the image is inverted C. the magnification is 0.67 and the image is erect D. the magnification is 0.67 and the image is inverted E. the magnification is 0.5 and the image is erect	A Chapter 34: IMAGES
At the first minimum adjacent to the central maximum of a single-slit diffraction pattern the phase difference between the Huygens wavelet from the top of the slit and the wavelet from the midpoint of the slit is: A. π/8 rad B. π/4 rad C. π/2 rad D. π rad E. 3π/2 rad	D Chapter 36: DIFFRACTION
A light wave with an electric field amplitude of E0 and a phase constant of zero is to be combined with one of the following waves: wave A has an amplitude of E0 and a phase constant of zero wave B has an amplitude of E0 and a phase constant of π wave C has an amplitude of 2E0 and a phase constant of zero wave D has an amplitude of 2E0 and a phase constant of π *wave E has an amplitude of 3E0 and a phase constant of π Which of these combinations produces the greatest intensity?	C