Microwaves with a wavelength of 7 cm and sound waves with a wavelength of 7 cm...

Microwaves with a wavelength of 7 cm and sound waves with a wavelength of 7 cm are incident on a

12 cm wide slit. Which of the following is correct?

(a) The diffraction pattern from microwaves and sounds waves is different because the waves have

different velocities.

(b) The frequency of the light is less than that of the sound waves

(c) Both the microwaves and sounds waves have a maximum at about 36 degrees.

(d) Both the microwaves and sounds waves have a minimum at about 36 degrees.

A green laser beam is incident on a pair of narrow slits and an interference pattern is formed on

a distant screen. If the green laser is replaced with a red laser, with everything else the same, the

distance between the fringes will

(a) increase because green light has a longer wavelength than red light.

(b) increase because red light has a longer wavelength than green light.

(c) remain the same because the distance between the slits is doesn’t change.

(d) decrease because green light has a shorter wavelength than the red light.

(e) decrease because red light has a shorter wavelength than the greed light.

Expert Solution

genius_generous answered 2 hours ago

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Microwaves with a wavelength of 7 cm and sound waves with a wavelength of 7 cm...

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