An object is placed 40 cm from a convex lens of focal length

An object is placed 40 cm from a convex lens of focal length 20 cm. How far away from the lens will the image be formed? The Antinode is the location where the amplitude of vibration is: Minimum Maximum Midway between minimum and maximum If the tuning fork is at a higher frequency, will the first resonance be when the water level is closer or further away from the top of the column (than what it is for a lower frequency fork)? Closer further If the frequency of a tuning fork is 2500 Hz, what will be the wavelength of sound produced by it, if the speed of sound is 340 m/s.

Solution

anti-node a point where the amplitude of the standing wave is a maximum