6. Interference occurs in a) Light waves b) Sound waves c) Water waves d) All of

Question

6. Interference occurs in a) Light waves b) Sound waves c) Water waves d) All of the above el None of the above 7. When normal sun light reflects off a horizontal surface, the E field of the light is more while the E field reflecting off a vertical surface is more a) horizontally polarized; vertically Polarized b) both art vertically polarized c) vertically polarized; horizontally polarized d) both are horizontally polarized 8. An object of height 4 cm is placed 7 cm from a spherical concave mirror whose radius of curvature is 10 cm. Find position of the image, q. 9. At home you shine a laser pointer in air (n = 1.0) onto the surface of a material at an angle of 30 degrees to the normal. The refracted ray makes an angle of 23.6 degrees What is the material? a) Carbon Disulfide (n = 1.63) b) Corn Syrup (n = 2.21) c) Ethyl Alcohol (n = 1.25) e) Benzene (n = 1.50) 10 A red laser pulse with a wavelength of 660nm travels a distance of 12m. How long will it take for the laser pulse to travel this distance and what is the frequency? Time = f = The primary mirror on the Hubble Space Telescope is 2.4cm in diameter (assuming this is also the aperture size). What is the angle of resolution? Let lambda = 550nm(average).

Explanation / Answer

6} d) all of the above

8] 1/f = 1/u + 1/v

given, R = 10 cm; f = R/2 = -5 cm ; u = -7 cm

-[1/5*10-2] = -[1/7*10-2] +1/v

1/v = -5.7143 m

v = -17.5 cm

q = - 17.5 cm

Related Questions

Navigate

• Browse (All)
• Browse 6
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.