REFERENCE: https://drive.google.com/file/d/1MdBsPSii-8YR5miMVK9ISogvqRFD0NRN/view?usp=sharing

please answer all items. i will give a high rate. with SOLUTIONS PLEASE.

Instructions: Write the letter of your answer on a separate sheet of paper. 1. What principle is responsible for light spreading as it passes through a narrow slit? a. diffraction c. polarization b. interference d. refraction 2. What principle is responsible for altemating light and dark bands when light passes through two or more narrow slits? a. dispersion c. polarization b. interference d. refraction 32 3. At the rst maxima on either side of the central bright spot in a double-slit experiment, how does the light from each opening arrive? The light from each opening arrives . a. in phase b. Q" cut of phase c. 18B\" out of phase d. none at all 4. At the second maxima on either side of the central brig ht spot in a double-slit experiment, how do we describe the light from each slit? a. Each opening travels the same distance. b. Une opening travels twice as far as light from the other opening. c. One opening travels one wavelength of light farther than light from the other opening. d. Une opening travels two wavelength of light farther than light from the other opening. 5. One wavelength of coherent light travels path P1 in arriving at point (:1 and another coherent beam travels path P2 in arriving at the same point. What will be the path difference in P1 P: if these two beams are to interfere constructively? a. zero c. an odd number of half-wavelength b. a whole number of wavelengths d. a whole number of half-wavelength B. What happens to the mass of a radioactive substance as it decays? It a. increases c. remains constant b. decreases d. could be any of these TI'. Which is an implication of electrons jumping from one energy level to another? a. Electrons only lose energv. b. The atom will remain in its ground state. c. It is the main reason for radiation to occur. d. Electrons only emits electromagnetic radiation. El. 1What happens to a substance if-it has a long half-life? A substance with a long half-life a. is unstable 1:. is not radioactive b. poses no problem d. decoys immediately 9. If 4.!) x 1013 atoms decay with a half-life of 2.3 years, how many are remaining after 3.? years? a. 1.11::111?'EL b.1.3x1'3 c.1.?x1\"' d.2.5x10'\" 1D. A Thallium source was certied at 10 pCi ten years ago. What is its activity now if the half-life is 3.? years? a. 1.0 pGi b. 1.5 pGi c. 3.3 |JCi d. 4.? Hill 11. Which of the following is TRUE of the special theory of relativity? The special theory of relativity . a. has not been veried by experiment b. does not agree with Newtonian mechanics s. does not agree with electromagnetic theory d. is based on complex mathematical analysis 12. An object moves in a direction parallel to its length with a velocity that approaches the velocity of light. As measured by a stationary observer, what would be the length of this object? a. approaches zero c. increases slightly b. does not change d. approaches innity 13. As the speed of a particle approaches the speed of light. what will happen to the mass and the momentum of the particle? a. increases c. approaches zero b. decreases d. remains the same 14. What happens to the kinetic energy of a speedy proton when its relativistic mass doubles? Its kinetic energy . a. also doubles c. more than doubled b. less than double d. cannot be detennined 15. What happens to the total relativistic energy of a speedy proton when its relativistic mass doubles? Its total relativistic energy a. also doubles c. more than doubled b. less than doubles d. cannot be determined