35) Why are sound waves not polarizable? a. Because they are not electromagnetic

Question

35) Why are sound waves not polarizable? a. Because they are not electromagnetic. b. They are not transverse. c. They are not longitudinal. d. But this is readily possible! The Doppler shit for electromagnetic radiation from distant galaxies moving toward the observer i called a: a. vacuum shift. b. blue shift. c. red shift. d. black shift. 37) An ultraviolet light wave has a wavelength of 300 nm and speed of 1.8x10 m/s through a transparent c. 6.3x102 Hz medium. What is the frequency of this wave in the medium? (1 nm 10 m and c 3x10 m/s) a. 7.0x104 Hz b. 6.0x104 Hz d. 10x104 Hz 38) A ray of light strikes a thick sheet of glass (n 1.5) at an angle of 39° with the normal. Find the angle of the ray reflected off the glass surface with respect to the normal. a. 56° b. 25° ?. 46" d. 390

Explanation / Answer

35.
Longitudinal sound waves cannot be polarized as only transverse waves can be polarized.
Hence option b. They are not transverse.

36.
Option c. Red shift
The Doppler shift for electromagnetic radiation from distant galaxies moving away from the observer is called a red shift.

Pls post other questions separately.

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