A series of ocean waves, each 6.0 m from crest to crest, move past an 1.observer at a rate of 2 waves per second. Calculate the velocity of the waves. 2. A low C (f = 65Hz) is sounded on a piano. If the length of the piano wire is 2.0 m and its mass density is 5.0 g/m2, determine the tension of the wire. 3. A beam of light is incident upon a flat piece of glass (n = 1.50) at an angle of incidence of 30.00. Part of the beam is transmitted and part is reflected. Determine the angle between the reflected and transmitted rays. 4. An underwater diver sees the sun at an apparent angle of 45.00 from the vertical. How far is the sun above the horizon?
A series of ocean waves, each 6.0 m from crest to crest, move past an 1.observer at a rate of 2 waves per second. Calculate the velocity of the waves.
2. A low C (f = 65Hz) is sounded on a piano. If the length of the piano wire is 2.0 m and its mass density is 5.0 g/m2, determine the tension of the wire.
3. A beam of light is incident upon a flat piece of glass (n = 1.50) at an angle of incidence of 30.00. Part of the beam is transmitted and part is reflected. Determine the angle between the reflected and transmitted rays.
4. An underwater diver sees the sun at an apparent angle of 45.00 from the vertical. How far is the sun above the horizon? [
5. Light in air enters a diamond (n = 2.42) at an angle of incidence of 30.00. Determine the angle of refraction inside the diamond.
6. Which eye defect is corrected by a lens having different curvatures in two perpendicular directions?
7. A 1.70 m tall woman stands 5.00 m in front of a camera with a 50.00 cm focal length lens. Calculate the size of the image formed on film.
8.An object is 15.0 cm from the surface of a spherical Christmas tree ornament that is 5.00 cm in diameter. Determine the magnification of the image.
9.The image formed by a concave mirror is real, inverted and of the same size as that of the object. Determine the position of the object.
10. If a man’s face is 30.0 cm in front of a concave shaving mirror creating an erect image 1.50 times as large as the object, calculate the focal length of the mirror.
11. A 3 g copper coin at 200C is dropped from a height of 300 m and strikes the ground. If 60% of the energy goes into increasing the internal energy of the coin, determine its final temperature. [ ]
12. A piano string of mass 0.005 kg/m is under a tension of 1350 N. Determine the velocity with which a wave travels on this string.
13. The definition of 0 degrees Celsius is the equilibrium temperature between water and ……………
14. If two objects are placed together and neither one undergoes any change, they have the same ………………….
15.If the critical angle for total internal reflection inside a certain transparent material is found to be 48.00, calculate the index of refraction of the material.
16. The speed of a sound wave in air depends only on …………….
17. Light bends on entering glass from air because its ……...is less in the glass.
18. Diffraction around corners is greater when the ………. is larger.
19.Two point on a wave that are at half-wavelength apart are …….…. degrees out of phase with each other.
20. In a dispersive medium, the speed of light is a function of ………………
21. Three sheets of plastic have unknown indices of refraction. Sheet 1 is placed on top of sheet 2, and a laser beam is directed onto the sheets from above so that it strikes the interface at an angle of 26.50 with the normal. The refracted beam in sheet 2 makes an angle of 31.70 with the normal. The experiment is repeated with sheet 3 on top of sheet 2, and with the same angle of incidence, the refracted beam makes an angle of 36.70 with the normal. If the experiment is repeated again with sheet 1 on top of sheet 3, determine the expected angle of refraction in sheet 3? Assume the same angle of incidence.
22. A 50 g ice cube at 00C is heated until 45 g has become water at 1000C and 5 g has become steam at 1000C. Determine the amount of heat that can be added to accomplish this?
23. A ray of light incident on one face of an equilateral glass prism is refracted in such a way that it emerges from the opposite surface at an angle of 900 to the normal. Calculate the
i. angle of incidence.
ii. minimum deviation of the ray of light passing through the prism .
24. A 100 g aluminium calorimeter contains 250 g of water. The two substances are in thermal equilibrium at 100C. Two metallic blocks are placed in the water. One is a 50 g piece of copper at 800C, and the other sample has a mass of 70 g and is originally at a temperature of 1000C. The entire system stabilizes at a final temperature of 200C. Determine the specific heat capacity of the unknown second sample.
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