A laser beam is incident on two slits with a separation of 0.210 mm, and a screen is placed 4.80 m from the slits. If the bright interference fringes on the screen are separated by 1.59 cm, what is the wavelength of the laser light

Awoman stands a distance d from a loud motor that emits sound uniformly in all directions. the sound intensity at her position is an uncomfortable 2.0×10-3 w/m2. at a distance 2.6 times as far from the motor, what are (a) the sound intensity and (b) the sound intensity level relative to the threshold of hearing?

If the radius of curvature of the cornea is 0.75 cm when the eye is focusing on an object 36.0 cm from the cornea vertex and the indexes of refraction are as described before, what is the distance from the cornea vertex to the retina? express your answer to two significant

How is zig zagging a form of acceleration?