Precise measurements can be inaccurate. d. Inaccurate measurements can be precise. 13. What represents the uncertainties in the data presented in a graph? a. error bar slope b. dependent variable y-intercept Which prefix corresponds to 10-¹5? 14. 15. C. a. b. C. d. atto- C. femto- d. pico- The radius of a sphere is (5.00 ± 0.05) cm. What is the relative uncertainty when its volume is computed? (volume of a sphere = a. 1% 4 ==Tr³, where r is the radius) 3 b. 3% C. d. nano- 5% 15%

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Compton effect

The incoming photons' energy must be in the range of an X-ray frequency to generate the Compton effect. The electron does not lose enough energy that reduces the wavelength of scattered photons towards the visible spectrum. As a result, with visible lights, the Compton effect is missing.

Recoil Velocity

The amount of backward thrust or force experienced by a person when he/she shoots a gun in the forward direction is called recoil velocity. This phenomenon always follows the law of conservation of linear momentum.