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What is the maximum value of the magnetic field 1.0 m away from a 100 W light bulb?
An FM radio station broadcasts at 98.6 MHz. What is the wavelength of the radio waves? If the maximum electric field component of an electromagnetic wave is 600 V/M, what is the average intensity of the wave?
What would be the force on your fingertip if you held it 1.0 m away from a 100 W light bulb? Assume a perfect reflector and use 1.0 cm\(^2\) as the area of your fingertip.
You are looking into a shiny Christmas ornament (ball). The ball has a diameter of 8.0 cm. Where does your image appear to be if you are holding the ball 20 cm from your face? What is the magnification?
A convex mirror in a store has a radius of curvature of 0.55 m. If a customer is 10 m from the mirror, where is the customer's image in the mirror? What is the magnification of the image of the image? What is the orientation of the image?
A concave mirror has a focal length of 40 cm. Determine the object position for which the resulting image is upright and 4 times the size of the object.
You want to form an image on a screen 10 m from a mirror. If the image is 7 times bigger than the object, what type of mirror do you need? What is the radius of curvature?
An object is placed at a distance of 30 cm from a concave lens of focal length 15 cm, h\(_I\) = 2 cm. Determine the position of the image, the linear magnification, and h\(_0\).
The image of a tree on a 35 mm color slide is 1.8 mm high. It is to be projected onto a screen 3.0 m from the slide and is to appear 493 mm high. What focal length is needed?
Given an object height of 3 cm and a convex lens of focal length 10cm. Determine the position and size of the produced image if the object is placed at:A. 30 cmB. 5 cm